Variable step size
[化] 可变步长
🧩 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;
size
[saɪz]
n. 大小，尺寸;规模;胶料，浆糊;巨大，大量;
vt. 按大小排列;改变…的大小;上胶料，上浆;上涂料;
adj. 一定尺寸的;
🗣️ 情景例句
I'd like to cash some traveller's checks here.
我想在这儿兑换一些旅行支票。
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
Two weeks ago it had a baby.
两周前它生了个孩子。