Step response problem
[计] 阶跃响应问题
🧩 词语组成解析
step
[stɛp]
n. 步，脚步;步骤，手段;步调;级别;
vt.& vi. 举步，行走;踩，踏上;跨入;轻快地走;
vi. 踏，踩;走;
vt. 跳舞;迈步;使成阶梯状;
🗣️ 情景例句
Stay ... stay.
再待一会儿……再一会儿。
All the neighbors helped us move in.
邻居们都帮忙为我们搬家。
At that moment, everybody began to laugh and sing.
此时，大家已经笑了起来，同时唱起了歌。