Foundationless
无基础的
✅ 同义词
🗣️ 情景例句
Good luck, Son.
祝你好运 ，孩子。
Hi.
你好。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。