Fluidness
n. 流动性, 流质, 变移性
🗣️ 情景例句
Philip, I took Michelle to a school play
Philip,我带Michelle看过学校演出的
Why didn't you ask me for help?
为什么你不请我帮忙？
There are eighteen floors in the building, and he lives on the fifteenth floor.
这幢大楼有18层。他住在第15层。