I hadn't a clue to the meaning of 'activism'. [+ of]

我根本不明白 activism 的意思。

I became more aware of the symbols and their meanings.

我进一步理解了这些符号及其意义。

Unsure of the meaning of this remark, Ryle chose to remain silent. [+ of]

由于不确定这句话究竟是什么意思，赖尔选择了保持沉默。

Her book is not without autobiographical meaning.

她的书不无为自己作传的意图。

Art has real meaning when it helps people to understand themselves.

当艺术有助于人们了解自身的时候才有真正的意义。

...a challenge that gives meaning to life.

使生活变得有意义的挑战

Don't mention failure when Kevin is around. He doesn't know the meaning of the word.

凯文在的时候不要提“失败”这个词。他不知道什么叫“失败”。