1. retreat from 放弃；退却
But this was actually one thing I couldn't do; I couldn't retreat from the party and the platform that I had given so much of my life to.
我不能离开我的党，也不能放弃我这一生为之付出了这么多的政治纲领O@uU&Qs=oz[0@*uo(dQ。

2. make effort to do sth. 努力
she did not make efforts to publicize her works.
她没有花力气宣传自己的作品;;HYq#Dg[ec~U]。

3. follow through 坚持到底
My problem was that I was an anger wimp and didn't follow through.
我的问题是，我爱生气，又懦弱，做什么事也经常坚持不下来n^.NAvmJ_N)。

4. by definition 顾名思义；从定义来看
By definition, the capacitance is one farad when one coulomb of charge is stored with one volt across the plates of a capacitor.
根据定义，电容器两极板的电压差为一伏的情况下，电容器储存一库仑的电荷，电容量就为1法拉qBQyw8)iLmlNZhyE。