clear adj. 清澈的；晴朗的；清楚的；确定的v.收拾；使(变)清洁；使(变)清澈；变晴 adv.清楚地；完全地：
We could see fish in the clear water. 我们看到清澈的水中有鱼。
I am not quite clear yet about this. 对此我还不太清楚。
After the storm was over, the sky cleared. 暴风雨过后，天晴了。
clerk n. [C]职员，办事员；书记员：
She got a job as a bank clerk. 她得到一份银行职员的工作。
clever adj.聪明的，伶俐的：
It’s clever of her to refuse them.
=She is clever to refuse them. 她拒绝他们那是明智的。
click v.（使）发出短而尖的声音；（使）发出咔嗒声：
The man opposite kept clicking his ballpoint pen.对面的男子一直把圆珠笔弄得咔嗒作响。
climate n.风气；气候：
Small businesses are finding it hard to survive in the present economic climate.小企业发现在当前的经济形势下很难生存。
dry climate干燥的气候。
climb v.爬，攀登 n. [C]攀登：
Monkeys can climb well. 猴子善于攀爬。
The climb got all of us tired. 爬山使我们都累了。
clinic n.[C]诊所：It is often less expensive to see a doctor in a clinic than in a hospital. 通常去诊所看病比去医院看病便宜。
clock n. [C]时钟：
The clock is 5 minutes fast (slow). 这钟快(慢)5分钟。
clone v.克隆；使……无性繁殖：
close v.关，闭 adj.& adv.近，靠近：
She closed the door softly. 她轻轻地关上门。
The post office closes at 6. 邮局6点关门。
I live close to the shops. 我住得离商店很近。
【注意】用作形容词时，它不表示“关闭”的意思，要表示此义，要用closed：The shop is closed now. 商店现在关门了。
