He was a friend with whom I was toughing the winter out.他是和我一起熬过那个冬天的朋友.Toughing of rubble in tyre is key to enhancing its strength of the interfaces of crystals.轮胎橡胶增韧的关键是要增强晶界之间的强度....

toughing的音标：toughing的英式发音音标为：['tʌfɪŋ]toughing的美式发音音标为：['tʌfɪŋ]...

v.[美国口语]忍耐，忍受，熬过（常与 out连用）( tough的现在分词 )...