Heliophysics
太阳物理学
🗣️ 情景例句
I thought that was Nat Baker who rang the front doorbell.
我还以为是Nat Baker 按大门门铃呢。
Don't speak all you know, but know all you speak.
不要尽言所知，而要尽知所言。
Think it over.
仔细考虑一下。