Heptaphylline
七叶黄皮碱
🗣️ 情景例句
Well, I'd better be on my way.
好啦，我该走了呢。
May I help you?
要我帮忙吗？
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。