Multigrade
a. (润滑油)多级通用的,多品位的,稠化的
🗣️ 情景例句
Have you ever been there?
你去过那儿吗？
Barking dogs seldom bite.
善吠的狗很少咬人。
No, it isn't yours! said Miss Yang.
“不，不是你的书！”杨小姐说。