🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
viscosity
[vis'kɔsiti]
n. <术>黏稠;黏性;粘质;粘性;
🗣️ 情景例句
Good work.
做得好。
Beggars must (should) be no choosers.
行乞的哪能挑肥拣瘦；饥不择食。
It doesn't matter. I like walking. Look at the sun! It's a fine day for a walk.
不要紧。我喜欢步行。瞧瞧太阳！这是步行的好天气。