Step penetrameter
[医] 梯级式透度计
🧩 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;
[化] 透度计\\n[医] 透度计
🗣️ 情景例句
Our troop was under his command.
我们的部队由他指挥。
She looks so pale, she must be ill.
她脸色很苍白，一定病了。
I think May is the best month.
我认为5月最好。