Squelette
翼形中线(弧线), 剖面中线
🗣️ 情景例句
I hope you're all enjoying the exhibition.
我希望你们都喜欢这个展览
Imagination is more important than knowledge.
想像力比知识更重要。
This greatly reduced the speed of the ship,
这样一来，大大降低了船的航速。