Metrolac
胶乳比重计
🗣️ 情景例句
Oh, and there is Max!
噢， Max在那！
Perseverance is failing nineteen times and succeeding the twentieth.
十九次失败，到第二十次获得成功，这就叫坚持。
Is she very unhappy without me?
没有我在她是不是很不愉快？