🗣️ 情景例句
Can I count on your help?
我能仰仗你的协助吗？
I wrote several letters on my mother's behalf.
我代表我母亲写了几封信。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。