Thteonine
[机] 苏氨酸
🗣️ 情景例句
It's so good to have you home again ...
真高兴 ，你又回家了……
Look who's talking!
怎么不说你自己？
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。