1、The clouds thicken as a storm approaches, and the sky turns gray.
云层开始变密集，暴风雨接近，天空变得灰暗。
2、The general issued a command from his headquarters.
将军在他的指挥部下达了一项命令。
3、He corralled the stray cattle and brought them back to the farm.
他把走失的牛群赶进围栏，带回了农场。
4、The police corralled the protesters and prevented them from marching.
警察围住了抗议者，阻止了他们的游行。