Fcv
abbr. fill-and-check valve 注入与检查阀门
🗣️ 情景例句
Two heads are better than one.
三个臭皮匠胜过一个诸葛亮。
She made a notable contribution to science.
她对科学做出了杰出的贡献。
Oh, I must go home.
噢，我必须回家了。