Unna's pencil
[医] 乌纳氏笔剂, 棒剂
🧩 词语组成解析
🗣️ 情景例句
I shall do as I please.
我喜欢怎么做就怎么做。
Most things have two handles.
大多数事物总有两种解释。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。