1.failing n. 失败，缺点，过失 prep. 如果没有，若无 ... 时

That machine has one big failing.
那台机器有个大缺点。

2.implacable adj. 难宽恕的，难和解的，执拗的

There is implacable hatred between the two nations.
两国之间有无法消除的仇恨。

3.propensity n. 倾向，习性

Most boys have a propensity for playing with machinery.
一般的男孩子都有玩机械的习性。

4.wilfully adv. 任意地=willfully

However, the days are gone when hegemonists wilfully decided the destiny of people all over the world.
但是，他们像过去那样随意主宰世界人民命运的时代已经过去。

5.pianoforte n. 钢琴

About this time Jane Fairfax received the handsome gift of a pianoforte, anonymously given.
大约就在这个时候，简收到了一份厚礼，这是一架钢琴，送礼者不知何人。