Gorgonin
珊瑚硬蛋白
🗣️ 情景例句
Their life together has been wonderfully happy.
他们在一起的生活极为幸福。
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Only in a sparsely-populated rural community is it possible to disregard it.
只有在人口稀少的农村，才可以忽视准时的习惯。