Grades
n. 分数；等级（grade的复数形式）
🗣️ 情景例句
Don't interfere in my affairs.
别干涉我的事情。
After that,I go downstairs to the kitchen to have breakfast.
在那以后，我去楼下厨房吃早餐。
While the men had been working inside the ship, the air-line had been giving off oxygen.
当工人们的在船舱里干活时，供气管一直在排放氧气。