Cells
n. 细胞；牢房；小屋；单元格（cell的复数）
🗣️ 情景例句
When do you need the volunteers,
你们什么时候需要义工
All things are easy that are done willingly.
做事乐意，诸事容易。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。