🧩 词语组成解析
flint
[flint]
n. 燧石，火石;（打火机等的）打火石;
river
['rivə]
n. 河，江;溪，巨流;
🗣️ 情景例句
Please sit down, Mr. Mark.
请坐吧，马克先生。
I'm fed up with him.
我受够他了。
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。