Toughener
[化] 增韧剂
🗣️ 情景例句
We get our friends to roll their sleeves up and get to work.
我们召集我们的朋友共同卷起袖子来做。
How long will you be away?
你将离开多久？
wants agreement on general principles, which could be applied to many types of products and perhaps extended to other countries.
则希望就普遍的原则取得一致，而这些原则适用于许多不同产品，同时可能延伸到其它国家。