Grooved roll
[机] 环槽滚子
🧩 词语组成解析
a. 带纹道的；表面有沟槽的
roll
[rəul]
vt. 辗;使（眼球等）左右转动;（使）原地转圈;滚动;
vi. 左右摇晃;翻滚;开始移动，启动;
n. 名册;滚翻;
🗣️ 情景例句
And have you had an engineer come in to do an inspection?
你们可有一个工程师来做过检查吗？
Old birds are not caught with new nests.
新巢捉不到老鸟。
The sun was shining and the sky was crystal clear.
阳光闪烁，天空湛蓝。