相关题目
Some insects blend in with their （ ）so that it＇s difficult to see them.
Most water （ ）in Taiwan now do not contain fluoride.
When touring to the earthquake-stricken area, our President was moved and touched by the （ ）of the poor victim family.
If you want to succeed, there is no （ ）for hard work. So, work hard!
Cigarettes contain many harmful （ ）, so please stop smoking.
Do you want to pay for a series of issues of our magazine? We now make a special offer to new （ ）.
Wood is the most important building （ ）in that area.
They served a drink mixed with some blue （ ）.
Meat should be kept in cold （ ）to keep fresh.
The color balloons are out of （ ）now; the storeowner sold them all the day before.
