toughen  朗读 toughen

音标：tʌfən

toughen翻译

toughen双语用法和例句

相关单词

tollgate treponema transpecific tumbledown talien tempering tussah threefold terminator tong tightwad tetrazolium topiary toolkit tambourine triptich tromso tailspin talismanic threshing

中文词源

英文词源