Toughener
[化] 增韧剂
🗣️ 情景例句
Good-bye.
再见。
I'm sorry. Am I keeping you awake?
对不起。我吵得你睡不着了吗？
It seems that the further cats fall, the less they are likely to injure themselves.
看起来，猫跌落的距离越长，它们就越不会伤害自己。