Cascade oiling
[建] 环给油, 油杯润滑
🧩 词语组成解析
[化] 加脂
🗣️ 情景例句
78 percent of black high-school graduates are unemployed.
百分之四十八的黑人高中毕业生失业。
He is watching the sea on the mast.
他从桅杆上面眺望着大海。
I need your help.
我需要你的帮助。