1.
2,4-dimethylcyclotetramethylene sulfone
２,４－二甲基环四甲撑砜
2.
look around in bewilderment
不知所措地环顾四周
3.
I saw my master looking about him.
我看到老师在环顾四周。
4.
She sat up and looked about her.
她坐了起来,环顾四周。
5.
He stood there looking all round.
他站在那儿环顾四周。
6.
Look around and they are there.
环顾四周，它们都在。
7.
She looks all around, there are flowers everywhere.
她环顾四周，到处到是花。
8.
She looked around for some paper
她环顾四周想找一些纸。
9.
Geomorphology and Quaternary Environment
地貌学与第四纪环境
10.
The country is encircled by the sea.
这个国家四面环海。
11.
Japan is surrounded by the sea and covered with mountains.
日本四面环海，山峦叠嶂。
12.
The city is shut in by high hills on every side.
这座城市四面环山。
13.
The country is ringed with mountains.
这个国家四面环山。
14.
I looked round me in astonishment.
我惊愕地环视四周。
15.
level area surrounded by hills
四周有小山环绕的平地.
16.
(4) Creation of environmental pollution;
（四）造成环境污染的；
17.
the rhythm of the tides, seasons
潮汐的涨落、 四季的循环
18.
The lake is ringed with willows.
该湖四周柳树环绕。