重点讲解：
1. first of all
第一；首先；
eg. First of all,let's see where we agree and disagree.
首先，我们来看看我们的共同点和不同点在什么地方+IlLhfknRf,m=2tTZE。
eg. First of all we must identify the problem areas.
首先我们必须找出问题所在xNU4-n_GN0Yv3mQO。
2. once in a while
偶尔；间或；
eg. We go to the park for a picnic once in a while.
我们有时去公园野餐&)@D5~~.@aTHPi-。
eg. Everyone needs to be bolstered up once in a while.
每个人都时不时的需要些鼓励+,dg[U%1yf3V。
3. turn into
（使）变成；（使）成为；
eg. Long-time blankness will turn into blindness.
茫然得太久就成了盲目RfSG;cKX+JF4i4SB;_u。
eg. Guy has turned into a really hard case since he's been in prison.
盖伊自从进了监狱后，已变成一个实在不可救药的人了6K*Zv*eK))xH6743iN~c。