chase down的用法和样例：
例句
用作动词 (v.)
- Before we can change what has happened, we must get down to grassroots.
要改变目前已发生的事情，我们必须找出事实的真相。 - He reaches into his pocket, pulls out a pile of condoms, finds some aspirins in the midst and washes two down with water.
他伸手进袋里，掏出一堆避孕套，在其中找出一些阿司匹灵，用水送下了两颗。
词汇搭配
- chase down 找出
