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
Forgive me if I'm wrong, but haven't we met before.
如果我弄错的话请原谅我，我们以前见过面吧？
Dinner is on me.
晚饭我请客。
Summer comes after spring. It is the hottest season.
春天之后是夏天。夏天是最热的季节。