Sohc
单项上凸轮轴式
🗣️ 情景例句
The sketches for the cover of the new doll book?
是新玩具书的封面设计吗？
The cameraman is filming a famous star.
摄影师正在拍摄著名影星的电影。
Well, it feels strange to have a twin sister.
是呀，有个孪生姐姐是觉得奇怪。