Old faithful
老忠实泉（位于黄石公园）
🧩 词语组成解析
old
[old]
adj. 老的;古老的;以前的;（用于指称被替代的东西）原来的;
n. 古时;
🗣️ 情景例句
Where did you come from?
你从哪里来？
The best is oftentimes the enemy of the good.
要求过高反难成功。
Are you planning to pay in cash?
你要付现吗？