Tempus utile
[法] 盈利期间, 使用期间
🧩 词语组成解析
[医] 颞颥, 颞部
a. 有用的；有益的
🗣️ 情景例句
I can't build a fire by rubbing two pieces of wood together.
我总不能靠着磨擦两片木柴来取火吧。
I hope you get there on time.
我希望你准时到那里。
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。