Viscosity index
[化] 粘度指数
🧩 词语组成解析
viscosity
[vis'kɔsiti]
n. <术>黏稠;黏性;粘质;粘性;
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
It's the way it should be.
本该如此。
So far, so good.
到目前为止还好。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。