Obstacles
n. 障碍（物）( obstacle的复数形式 ); 障碍物; 绊脚石; 障碍栅栏
🗣️ 情景例句
What's the problem, Richard?
有什么问题吗 Richard
But you just got here. Can't you stay a little longer?
不过你刚来呀。不能再呆一会了吗？
There are twenty-four boys, and twenty-two girls.
二十四个男生，二十二个女生。