Labourious
a. 吃力的;困难的;麻烦的
🗣️ 情景例句
Oh!
噢！
The course of true love never did run smooth.
好事多磨。
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。