Acid treatment
[化] 酸处理
🧩 词语组成解析
🗣️ 情景例句
It's six o'clock.
已经六点了。
How long have you lived here?
你住在这里多久了？
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。