Part of the path had been washed away by the sea.
部分小路已被海浪冲坏。
First I applied a blue colour wash to the canvas.
我先在画布上涂了一层蓝色水彩。
The sign on the wall said 'Now wash your hands'.
墙上的牌子上写着“请洗手”。
If your hands are dirty, go and wash them.
要是你的手脏了，就去洗一洗。
In the interests of hygiene, please wash your hands.
为了卫生，请洗手。