重点讲解：
1. let alone （通常用在否定句后）遑论，更别提，更不用说；
例句：They had never seen such massive equipment, let alone made.
这样的大设备他们看都没看过，更不用说制造了&brMjdcXP]~cNi)OeA。
2. figure out 想出；理解；弄清；
例句：We must figure out how to do it.
我们必须想出做这件事的办法%[-h#b1sN^AsSMTk^*。
3. stick around 呆在原处(等待)；
例句：Stick around a while and see what develops.
呆上一会儿，看看会发生什么JCopP]IEFW=lG^。
4. instead of 代替…；而不是…；
例句：I have to finish my work instead of going out.
我必须完成工作，不能外出XOrY;-Kxni1;。
5. slow down (使)放慢；(使)减速；
例句：When the light is yellow, you should slow down.
灯变黄色时,你应该减速^%)vmeV]7jwM|s*。