🗣️ 情景例句
Is smoking allowed on the train?
火车上允许吸烟吗？
It is too late to cast anchor when the ship is on the rock.
船触礁后在抛锚，为时已经太晚了。
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。