He was a friend with whom I was toughing the winter out.
他是和我一起熬過那個冬天的朋友.
互聯(lián)網(wǎng)
Toughing of rubble in tyre is key to enhancing its strength of the interfaces of crystals.
輪胎橡膠增韌的關(guān)鍵是要增強(qiáng)晶界之間的強(qiáng)度.
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