1.a multitude of 大量；很多
All that he had just seen and heard aroused a multitude of questions in his mind.
剛才看到和聽到的種種事情，在他的頭腦里引發了一大堆的問題dcXeK]KNZ&~K。

2.fraught with 充滿
The next 20 years of transition to a new system are fraught with risks.
接下來的20年間，向新體系過渡的過程充滿了風險Pz;t1%lC4TIHR,。

3.give ammunition to 武裝
Such ironies will give ammunition to the many doubters who say that America is repeating the errors of the Soviet Union.
許多對此懷疑人士都表示，美國正在重蹈蘇聯的覆轍，這些諷刺無疑加強了這些人的武裝Q=)R;yd70SN@Pq。

4.use sth. against sb. 利用……對付
Let us use the weapon of the enemy against them.
讓我們用他們自己的武器來對付他們W[dja+8K=HT[*4kUud。