Bombycin
蚕素
🗣️ 情景例句
He started out on a voyage around the world.
他开始周游世界。
His finger is wounded, Does it hurt?
他的手指受伤了，疼不疼？
OK!said Miss Yang kindly.Let's forget the whole thing.
“很好！”杨小姐宽厚地说，“让我们忘记全部的事情。”