重点讲解：
1. per se
本身；本质上
eg. The authors' argument is not with the free market per se but with the western society in which it works.
作者的论点与自由市场本身无关，而是与自由市场所处的西方社会有关w6rf@@;MNztR7(V1b。
eg. Global warming per se is not really the problem; the catastrophic climate changes which might be caused by it are.
全球变暖本身并不是真正的问题；可能由它引发的灾害性天气变化才是问题所在JQp!Uz_s6v@Boln。
2. on the air
播送（广播、电视节目）；（广播、电视节目）播放；
eg. She is going on the air as presenter of a new show.
她即将上电视主持一档新节目[f@Yy=RaaQ~x2lB,(2mK。
eg. Rockwell hopes the program can be on the air within a year.
罗克韦尔希望该节目能在一年内播出#;)T~J1#yNp~6。
3. a bunch of
大量；大批；
eg. We did a bunch of songs together.
我们一起唱了很多首歌Tk3]6URcvhq9t~MXI。
eg. Your friends are all just a bunch of nobodies.
你的朋友都不过是无名之辈Vyg5t57Ju)(3(Dx。