tough是什么意思 n. 恶棍a. 强硬的, 艰苦的, 坚固的, 坚韧的, 粗暴的, 咬不动的 a. not given to gentleness or sentimentalitya. physically tougheneda. resistant to cutting or chewing tough的用法和例句: 1. I thought I was tough. I wasn't tough. 我以为我很硬气 结...