Collaborated
v. 合作( collaborate的过去式和过去分词 ); 勾结叛国
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
A friend is not so soon gotten as lost.
交友慢，失友快。
It's just the matter of the schedule,that is,if it is convenient of you right now.
如果你们感到方便的话，我想现在讨论一下日程安排的问题。