Martha's approaching her century and as wick as a flea.

满百岁了，却敏捷得像只跳。

It’s very hard to turn the wick up and down.

这灯芯很难旋上旋下。

The boss gets on my wick with his everlasting complaints about timekeeping. And he thinks nothing of rolling up to the office at ten o'clock himself.

上司怨说我们不守时, 真令我烦透了。可他对自己10点钟才到办公室却一点也不在乎。