1. thousands of 许多,无数;数以千计的……,成千上万的……
The game drew thousands of spectators.
这场比赛吸引了数千名观众。
2. distinguish between 区别;分辨
It is certainly important to distinguish between right and wrong.
明辨是非当然要紧。
3. be surrounded by 被包围
Schools should be surrounded by a pure and healthy environment.
学校周围的环境应该是纯洁而健康的。
4. compared to 与…相比
That had been a placid pastime compared to his condition now.
与他目前的情况相比,那简直算是安静的消遣了。
5. in search of 寻找;搜寻
He glanced about as if he was in search of something.
他扫视了四周,好象他在搜寻什么东西。
n. 潜伏,潜行 v. 潜藏,潜伏,埋伏