In the Zhang household, the phone lay face up beside the salt, always. Zhang Hui was a dispatcher for a repair company: when a pipe burst at midnight or an elevator trapped someone between floors, her phone spoke first. She had trained her family to read its vibrations — two short buzzes meant a job, a long one meant a supervisor. Mianmian, fifteen, had learned to pass the rice before the screen lit.
在张家，手机总是屏幕朝上，放在盐罐旁边。张慧是一家维修公司的调度员：半夜水管爆裂，或者有人被困在两层楼之间的电梯里时，总是她的手机先开口。她把家人训练得会分辨震动——两下短的是出工，一记长的是主管。十五岁的棉棉已经学会在屏幕亮起之前把米饭递过去。
Dinner was at seven, if the phone allowed. Her father, who worked at a printing plant and came home smelling of ink, had a rule he never enforced: no screens at dinner. He would say it, ask about Mianmian's day, and then the phone would buzz, Zhang Hui would hold up one finger, and the sentence would hang in the air until it went cold.
晚饭定在七点，如果手机允许的话。父亲在印刷厂上班，回家时身上带着油墨味。他有一条从未真正执行过的规矩：吃饭时不许看屏幕。他会把这句话说一遍，问棉棉今天过得怎样，接着手机震动，张慧竖起一根手指，那句话就悬在空气里，一直悬到凉透。
That autumn Mianmian's choir was to sing at the county theatre. It was not a competition; there was no prize. She had a short solo, eight bars, in the second song. She told her mother three times, each time in a different tone: once casually, once with the printed programme, once by leaving it open on the kitchen table for a week. Zhang Hui put the date in her phone, under a reminder labeled IMPORTANT.
那年秋天，棉棉的合唱团要在县剧院演出。那不是比赛，也没有奖品。她在第二首歌里有一小段独唱，八个小节。她跟母亲说了三次，每次语气都不同：一次装作随口提起，一次拿着印好的节目单，一次把节目单摊在厨房桌上整整一周。张慧把日期存进手机，放在一条标着“重要”的提醒里。
The theatre smelled of dust and new paint. Mianmian stood in the second row in a dark blue dress, and the stage lights blinded her beyond the first five rows. Her father sat in his good jacket, holding the programme too tightly. The seat beside him stayed empty through the first song.
剧院里是灰尘和新油漆的气味。棉棉穿着深蓝色连衣裙站在第二排，舞台灯光让她看不清前五排以外。父亲坐在那里，穿着好外套，把节目单捏得太紧。第一首歌从头唱到尾，他旁边的座位一直空着。
Zhang Hui was in the car park, phone against her ear. A retirement home had lost heating on the coldest night of the year; the dispatcher on duty had gone home sick. Through the open doors she could hear the choir, a swell of voices, then silence, then applause. She could also hear an old woman saying she was fine, really, only her hands were cold. Zhang Hui looked at the doors. She looked at the phone. She stayed where she was.
张慧在停车场，手机贴在耳边。一年中最冷的这个夜晚，一家养老院断了暖气；值班的调度员已经请病假回家。透过敞开的大门，她能听见合唱，声音涌起，安静，掌声。她也能听见一位老太太说自己没事，真的，只是手冷。张慧看看大门，又看看手机。她留在了原地。
She entered during the interval. Mianmian saw her from the corridor and did not smile. 'You missed it,' she said. 'It was eight bars.' Zhang Hui began to explain about the heating, the sick colleague, the woman with cold hands. Mianmian listened politely, the way one listens to a weather report, and then said the thing that stayed with her mother for a long time: 'You are always there for everyone. You are just never here.'
她在中场休息时进来。棉棉在走廊看见她，没有笑。“你错过了，”她说，“只有八小节。”张慧开始解释暖气、请假的同事、那位手冷的老太太。棉棉礼貌地听着，像听一段天气预报，然后说出了那句在母亲心里停留很久的话：“你对每个人都随叫随到。你只是从来不在。”
The argument lasted four days. It was not loud. It moved from the kitchen to the car to the small hours, and produced a document, because Zhang Hui trusted documents. One page, three rules, signed by all three and stuck to the fridge with a magnet from a hardware fair.
这场争吵持续了四天。声音并不大。它从厨房移到车里，又移到深夜，最后变成一份文件，因为张慧相信文件。一页纸，三条规矩，三个人都签了名，用一枚五金展的磁贴吸在冰箱上。
The first rule was a rota: one evening a week, someone else carried the duty phone. The second was a boundary: at dinner the phone lived face down in a bowl by the door, and if it buzzed, her father decided whether the call was truly an emergency. The third was harder: each of them would say, once a week, one thing they had not said for lack of time.
第一条是轮班表：每周有一个晚上，由别人拿值班手机。第二条是一道边界：吃饭时手机屏幕朝下待在门口的碗里，如果它震动，由父亲判断那通电话是不是真的紧急。第三条更难：每个人每周要说一件因为没时间而一直没说的事。
It did not work perfectly. In January the phone rang during dinner and Zhang Hui answered it, and Mianmian left the table, and the bowl stayed empty for a week. But in March, at the spring concert, the solo came again. This time Zhang Hui heard all eight bars. Afterwards, in the corridor, she did not say sorry. She said, 'I heard the third note. The one you held.' Mianmian looked at her for a moment, then took her arm, and they walked out into the cold together.
它并没有完美地运作。一月的一个晚上，手机在吃饭时响了，张慧接了，棉棉离开了餐桌，那只碗空了一个星期。但到了三月，春季音乐会上，那段独唱又来了。这一次，张慧听完了全部八个小节。散场后，在走廊里，她没有说对不起。她说：“我听见了第三个音。你拖住的那个。”棉棉看了她一会儿，然后挽住她的胳膊，两人一起走进外面的寒冷里。