151、be careful about / of / with 当心……
Be careful about what you say, as it might offend someone. 当心你说的话，或许会冒犯到其他人。
Be careful of the steps, it's slippery outside. 当心台阶，外面非常滑。
Be careful with the glass, it's very fragile. 小心这个玻璃，它很易碎。
152、be careful not to do sth 当心(不要 做某事
Be careful not to spill the coffee while pouring it. 倒咖啡时要小心不要洒出来。
Be careful to lock the door when you leave. 离开时别忘了锁门。
153、be careless about / with 对……粗枝大叶
He is always careless about his appearance. 他一直对我们的外表粗枝大叶。
Be careful with your work, don't be careless. 工作时要认真，不要粗心。
154、carry on 继续进行;拓展
Carry on with your work, we'll discuss it later. 继续你的工作，大家稍后再讨论。
Let's carry on with the meeting. 大家继续开会吧。
155、carry out 实行;实行
The plan was carried out successfully. 计划实行得非常成功。
We need to carry out the decision made in the meeting. 大家需要实行会议上的决定。
156、catch a cold 感冒
I think I caught a cold because of the cold weather. 我感觉是由于天气太冷，所以我感冒了。
Make sure you wrap up warm to avoid catching a cold. 穿得暖和点，以免感冒。
157、be / get caught in 处于困境;遭遇
She got caught in a traffic jam and missed the meeting. 她遇见了交通堵塞，错过了会议。
He was caught in a difficult situation and didn't know what to do. 他陷入了困境，不了解该如何解决。
158、catch sb's eye 引起某人的注意
Her beautiful dress caught everyone's eye at the party. 她在派对上穿的漂亮裙子吸引了所有人的目光。
The cat suddenly jumped up and caught the baby's eye. 猫忽然跳了起来，引起了婴儿的注意。
159、catch up with 赶上(…… ;追上(……
I'll catch up with you after I finish this last bite of apple. 我吃完这最后一口苹果就赶上你。
The runner caught up with the leader in the last lap. 跑步者在最后一圈追上了领先者。
160、cause ... to do sth 致使……做某事
The bad weather caused us to cancel the outdoor activity. 坏天气致使大家取消了户外活动。
The noise outside caused me to wake up early. 外面的噪音致使我早早地醒了。
161、in the center of 在……中间
There's a beautiful statue in the center of the square. 广场中央有一座漂亮的雕像。
The library is located in the center of the city. 图书馆坐落于市中心。
162、be certain to do sth 一定做某事
I'm certain to win the race if I train hard enough. 假如我努力练习，我一定能在比赛中获胜。
Be certain to check your work before submitting it. 提交之前必须要检查你的工作。
163、be certain about / of sth 对某事有把握
I'm certain about my decision, I think it's the right thing to do. 我对我的决定非常有把握，我觉得这是正确的做法。
Are you certain of the information you provided? 你对你提供的信息有把握吗?
164、chance for sb to do sth 某人 做某事的机会
She grabbed the chance to study abroad and didn't look back. 她抓住了出国留学的机会，没回头。
There's a good chance for you to win the scholarship if you perform well in the exam. 假如你考试表现得好，你取得奖学金的机会非常大。
165、chance of doing sth 做 某事的可能性
There's a slim chance of finding the lost item, but we'll still try. 找到丢失物品的可能性非常小，但大家还是会尝试。
She has a good chance of passing the exam if she studies hard. 假如她好好学习，她通过考试的可能性非常大。