Impulsor
[数]非共面直线对
🗣️ 情景例句
You're welcome anytime.
欢迎你随时来玩。
Adversity leads to prosperity.
逆境迎向昌盛。
Mrs.Richards quickly hid in the small storeroom under the stairs.
便赶紧躲到了楼梯下的小储藏室里。