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
Here they are. Family Album, U.S.A.
就在这里。美国写真！
What time does the train for Boston leaves?
去波士顿的火车几点开？
In vain they rush frantically round from place to place,
他们到处狂奔乱跑，