重点讲解：
1. talk about
讲；谈论；
eg. They always talk about computers.
他们总是谈论有关电脑的事情xh(^U%WFkbd。
eg. The lesson of that was that we have to talk about it.
我们吸取的教训是，我们必须开诚布公的谈论这个问题7@qi6&4lK)zAF8。
2. spend some time (in) doing sth.
花费时间做某事；
eg. We don't spend that much time thinking about search.
我们没有花那么多时间去考虑搜索Lnvc+1jTSj6@;。
eg. We spend a great deal of time putting on make-up to help perfect our look.
我们每天花费大量时间化妆来使我们的面容更加美丽-R+;jN8,EkdpB%c3,3Wn。
3. a couple of
两个；几个；
eg. So we did a couple of things to change this.
因此我们做了几件事以改变这种情况Kj9Wj.a-ebSQ1[zAuEz。
eg. Once I faced that fact, I solved the problem in a couple of days.
而一旦我正视那个事实，我在其后的一段时间里就将这个问题解决了XMwl!vcGJel。