重点讲解:
1. first of all 首先;
例句:First of all, it wasn't easy for me to understand the teacher.
首先,对我而言,听懂老师的话并不容易 。
2. for example 例如;比如;
例句:For example, dogs may be able to hear the microfacturing of rocks a few milliseconds before a quake shock reaches the surface.
比如说,狗也许能在地震到达地表几毫秒之前听见石头间的微小动静 。
3. except for 除了;除…之外;唯有;
例句:The room is empty except for a break wood chair.
屋子里除了一张破木椅什么都没有 。
4. be better off (用于建议)不如,最好;
例句:You'd be better off with a bicycle.
你最好骑自行车 。
n. 镜头,透镜,(眼球的)水晶体
vt