Ground roller
（水流的）底部旋滚
🧩 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
You're welcome.
不用客气。
It seems he knows everything.
看起来他好像知道一切事情。
Jeremy was a little disappointed by this but he did as his daughter asked.
这不免使杰里米有点扫兴，但他还是按照女儿的要求做了。