1. I often fish for hours without catching anything . 我经常一钓数小时却一无所获。
2. And remember that catching a moment makes the image even more unique in the stream of time. 更不要忘了，影像中被捕捉下来的瞬间使之在时间的长河里成了唯一。
3. D. Catching the drift of the content instead of understanding every word and never waste too much time on single words. 作四级听力练习要重材料大意，而不要力求听懂每个词，不要在单个词上浪费太多时间。
英英解释
n.
1. (baseball) playing the position of catcher on a baseball team
2. the act of detecting something; catching sight of something
3. becoming infected adj.
1. (of disease) capable of being transmitted by infection
