Ground substance
[医] 基质
🧩 词语组成解析
ground
[ɡraʊnd]
n. 地面，土地;基础;范围;阵地，战场;
vi. 搁浅，停飞;着陆;
vt. 把…放在地上;在…的基础树立上;交给…基本知识;使…受初步训练;
v. grind的过去式和过去分词;
🗣️ 情景例句
He is,
没有错。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
There is a mark of ink on his shirt.
他的衬衣上有一块墨迹。