n. 障碍,困难;跳栏;障碍赛跑;[史]囚笼,囚车;
vi. 克服困难;越过障碍;参加跨栏赛跑;
vt. 跳过障碍;跳栏;用疏篱围住;克服困难;
🗣️ 情景例句
Didn't we go to school together?
我们以前在一起上过学吗?
His foot is wounded, Does it hurt?
他的脚受伤了,疼不疼?
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.