Students take great interest in the optional courses.
學生對選修課非常感興趣。
First, … Second, … Third, …
第一,……。第二,……。第三,……。
Make some investigations to find out the cause of the pollution.
做些找出污染原因的調(diào)查。
It is not only… but also…
它不僅……而且……
We use money to buy all kinds of things.
我們用錢買各種各樣的東西。
The earliest coins in the world were used in China.
世界上最早的硬幣出現(xiàn)在中國。
Coins can be made of many different kinds of metal.
許多不同種類的金屬都可用來鑄幣。
Do you know how to look up a word in the dictionary?
你知道如何使用字典查找單詞嗎?
There are some dos and don'ts for the lab needed to be paid attention to.
這里是一些實驗室需要注意的事項。