1.a couple of 几个
Whereas if only I and a couple of other people like it, then it must be really something special.
然而，如果只有我自己和几个别的什么人喜欢，那么它一定真的很特别了。

2.unlock the secret 解开秘密
nce Japan is yours, you will unlock the secret to the legend of the lost army of rebel monks.
一旦日本为你所主宰，你将解开叛乱僧众的迷失的军队的秘密。

3.at increased risk 处于增加的风险中
Former smokers, or those who smoked less than half a pack per day, did not appear to be at increased risk.
曾吸烟的人或者每天吸烟低于半包的人看起来不处于增加的风险中。