It can affect your mood, weight control and productivity at work.
睡眠能影响你的心情、体重控制和工作效率。
Your text ing could be holding back your productivity at work or school.
发短信可能会影响工作效率或学习成绩。
Facebook at Work = Lost Productivity?
工作使用Facebook=失去效率？
Two row needles can work at same time, high speed and productivity.
双排针可同时工作，速度快，产量高。
Two row needles can work at same time, high speed and productivity.
双排针可同时工作，速度快，产量高。
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