tough
US /tʌf/
UK /tʌf/

形容词
1.
2.
困难的, 艰巨的
difficult and requiring great effort or endurance
示例:
•
It was a tough decision to make.
那是一个艰难的决定。
•
The exam was really tough.
考试真的很难。
在 Lingoland 学习这个单词
困难的, 艰巨的
difficult and requiring great effort or endurance