参考例句

1. I think it better, however, not to complain to Miss Bulstrode. One has to be on one 's guard when dealing with that one !

   可是我想还是不去向布尔斯德罗德小姐抱怨。跟这个女人打交道，可要当心点。

2. be on one 's guard ; be cautious or wary about; be alert to.

   警戒的；谨慎小心的；提防的。

3. be vigilant, be on the lookout, be on one 's guard , be careful.

   警惕的，小心戒备着。

4. Be on one 's guard for all possible dangers, be prepared for any eventualities

   如临大敌

5. be on one 's guard against saying the wrong thing

   提防说错话

6. on one 's guard ; on the watch

   警戒着;守望

7. to be on one 's guard to keep watch

   警备

8. One of a military corps of40gentlemen who attend the British sovereign as a ceremonial guard on state occasions.

   侍卫官英国举行国家大典时，侍卫国王的侍卫队的四十名成员中的一个

9. If people are not on guard , do not realize that such one -sidedness is a shortcoming and do not strive to overcome it, they are liable to go astray.

   如果不注意，如果不知道这种片面性的缺点，并且力求改正，那就容易走上错误的道路。

10. To rely on one another as wheel guard and cart or as cheek and jowl

    辅车相依

同义词

• on guard
• on one's guard(p)
• on your guard
• upon one's guard(p)