be on the watch

be on the watch 基本解释

(对...)留神着, (对...)戒备着

be on the watch 用法和例句

1、Always be on the watch against any attempts to cheat you.

要时刻提防人家的欺骗。

2、The government had to be on the watch for any ideological trend towards bourgeois liberalization.

政府不得不提防任何资产阶级自由化的思想趋势。

重点词汇

watch vt. 注视，注意；看守，监视；守候（机会等）；密切注意 n. 表；值夜，值班；看守，监视；值班人员 vi. 观看；注视；守候；看守