| 例句 |
Jose, as usual, had climbed a tree to keep watch.乔斯像往常一样爬到树上放哨。One of them was asleep and the other on watch.他们两人一人在睡觉，一人放哨。Since then he has flown on combat missions and even done sentry duty.从那时起，他就执行作战飞行任务，甚至还放哨。The troops posted a lookout for the night.部队布下一名哨兵夜间放哨。 |