在: exist; be living某人: a certain person开始: begin; start; initiate; comm ...做: make; manufacture; produce一件: a piece of事情: affair; matter; thing; busin ...的: 4次方是 The fourth power of 2 i ...时候: time我有些时期做一件事情: i have periods were i do one thing做一件事: do one一件事情的前前后后: the ins and outs of a matter在某人不在的时候: in one's absence在某人方便的时候: at one’s convenience在某人空闲的时候: one’s leisure在某人年轻的时候: in one's youth每一件事情: each thing在某人几十岁的时候: in one's -ies定下心来做一件事: to get down to很努力地(做一件事): work one's butt off开始的时候: in the beginning = at first接着做同一件事情: go on doing一件事情不是真的: unreal起先；开始的时候: at first首先,开始的时候: at first从一开始，开始的时候: at the outset
