At the outset, it seemed necessary to be on guard against the other two.

一开始，似乎有必要提防另外两个。

youdao

Be on your guard against pickpockets.

提防扒手。

《新英汉大辞典》

Thus, you should be on guard against this confused mapping.

因此，您应该谨防这种有混淆的映射。

youdao

One of the things, by the way, that Eikhenbaum does in passing is remind us that we should be on our guard against thinking that sound is onomatopoetic--that is, that it reflects the meaning of what it's talking about.

艾肯鲍姆在书中提到,他特别提醒我们,不应该赞同拟声现象，拟声就是认为声音能反应它所表达的意思。

耶鲁公开课 - 文学理论导论课程节选

Advocates said it would be important to guard against too much information being required or shared.

CNN: Americans mull national ID cards

But she warned members of the public to be on their guard against the virus.

BBC: Flu rate 'at record low'

Poland may be able to guard against the risk of credit and housing booms because the climate now favours tighter bank regulation.

ECONOMIST: The financial crisis has made the euro look more alluring