adv.
彻底地,
完全地：相当于
completely
The
thief
got
clean
away
with
the
money.
贼偷
了钱逃之夭夭了。

1.clean 既可以当形容词也可以当从此.
当形容词时,比较级和做高级分别是cleaner / cleanest.
当动词的意思是清洁,加上er 表示做清洁的人,因此是清洁工.//www.souquanme.com
2.clearer 是更清楚,更清澈.

Clean---1 形容词The ha//www.souquanme.comnds should be clean when you are eating.2动词 The desk is much better after I clean it.Sure---1 I'm sure that he'll come tonight.2 He's sure that he can pass the final e//www.souquanme.comxam.Wait for---1 His mother is waiting for him with an umbrella.2 Students are waiting for the bus.

clean作为动词时，只有及物动词用法，没有不及物动词的用法。但clwww.souquanme.comean可以作为形容词，充当句子表语或不足语。
Let's clean the classroom.让我们打扫教室吧。
We can keep our campus nice and clean.我们可以保持校园环境整洁干净。