Casehardening
v. 使无情, 使表面硬化( caseharden的现在分词 )
✅ 同义词
🗣️ 情景例句
It's a pleasure to meet you.
认识你是我的荣幸。
Does Louis like lemonade sour?
路易斯喜欢酸味强烈的柠檬水吗？
Sending a fax is more expensive than posting a letter, but much quicker.
发传真比寄信要贵些，但是要快得多。