at strain的用法和樣例：
例句
- He is working hard at this thesis.
他正在努力地撰寫(xiě)論文。 - I study my English lesson very hard at school.
在學(xué)校我很努力地學(xué)習我的英語(yǔ)課。
詞匯搭配
- strain at a gnat 謹小慎微
- strain at 用力
- strain at the leash 牽扯皮帶
- strain at something 使勁拉某物
- strain at a gnat and swallow a camel 拘于小事大事糊涂...
