Jecolein
鳖肝油酸甘油酯, 鳖肝油脂
🗣️ 情景例句
My suggestion would be...
我的建议是……
Why didn't you write me?
为什么你不给我写信？
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。