Solar thermal system
un. 太阳能热系统\\n
🧩 词语组成解析
🗣️ 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再见， Richard， 祝你好运。两周后见。
He who lives by hope will die by hunger.
靠希望生活的人将饥饿而死。
Your Chinese is really surprising.
你的中文令人惊讶。