哨兵迅速注意到敌军的动向并发出警报。

The ___lookout quickly noticed the enemy's movement and raised the alarm.

海军派出几艘巡逻艇在边境水域巡逻。

The navy sent several ___vedettes to patrol the border waters.

这位年轻的舞者迅速成为剧院的新星。

The young dancer quickly became the ___star of the theater.