Reblading
换刀, 重装叶片, 修复叶片
🗣️ 情景例句
Most people I meet have some English ability, but the ones who work hard at it really stand out from the crowd.
我遇到的多数人都会点英语，但只有那些刻苦学习的人才鹤立鸡群，给我深刻印象。
Which do you prefer, fishing or mountain-climbing?
钓鱼和登山，你更喜欢哪一个？
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。