Gram-variable
革兰氏染色不定
🧩 词语组成解析
gram
[græm]
n. 绿豆;鹰嘴豆;绿豆种子;克;
🗣️ 情景例句
To teach a fish how to swim.
孔子面前读诗书，班门弄斧。
I would have gone on the picnic if it hadn't rained.
如果没下雨，我就去野餐了。
But this does not matter, for, as he has often remarked, one is never too old to learn.
但这没有关系，因为正如他常说的那样，人要活到老学到老。