1. They can locate and steer clear of obstacles----or locate flying insects on which they feed.
    来确定并躲开障碍物，或找到它们赖以为生的昆虫。

2. I can hear you loud and clear.
    你的声音很大, 我听得很清楚.

3. I have tried to present the words and expressions here in a clear context.
    我在这里已尽量把这些字和词呈现在清楚的上下文中了.

4. It was clear that the reader had given up in despair.
    很明显，读者由于失望而放弃不读了。

5. I repeat: the runway is not clear for take-off.
    我再说一遍: 跑道尚未畅通, 不能起飞.

6. It is fairly clear that the sleeping period must have some function,
    很清楚，睡眠必然具有某种作用。

7. It was as clear as daylight then that burglars had forced an entry during her absence.
    事情很清楚，在她外出时，窃贼曾闯进家门。

8. It took me another three months to clear the inside, so as to make an exact boat of it.
    我又用三个月的功夫把树挖空,使它更像一条真船。

9. Isn´t that clear?"
    这还不清楚吗？”

10. In fact, he made it very clear when we were discussing marriage that if I had any doubts about anything, I should not hesitate to cancel our plans."
    事实上，当我们在讨论结婚的时候，他清楚地表明了这样一点：如果我对任何事情有怀疑, 我完全可以取消我们的计划。"