Underdesign
欠安全的设计
🗣️ 情景例句
OK. Keep those knees up.
好 ，膝盖抬高。
A true friend is known in the day of adversity.
疾风知劲草，患难知友情。
People travelling long distances frequently have to decide whether they would prefer to go by land, sea, or air.
出远门的人常常需要决定是走旱路、水路，还是坐飞机。