1.no doubt 無疑;毫無疑問
They have the usual quota of human weaknesses, no doubt.
毫無疑問,他們身上也有人所共有的弱點。
There was no doubt in his mind that the man was serious.
在他看來,這個人無疑是認真的。
2.wash off 洗掉;洗刷掉
No, thick black ink like that won't wash off easily.
不行, 那樣的黑墨水不容易洗掉。
Rub down the door and wash off the dust before applying the varnish.
在上清漆前,要徹底打磨這扇門并把塵土清洗掉。