by rail 由鐵路，坐火車　　

It is faster to send these goods by rail. 由鐵路運(yùn)送這些貨物更快些。　　

I’m afraid of flying—I prefer to travel by rail. 我害怕坐飛機(jī)旅行，寧愿坐火車。　　

by sea 乘船，由海路　　

We often go home by sea. 我們常坐船回家。　　

They will travel by sea and land. 他們將經(jīng)海路及陸路旅行。　　

by trade 職業(yè)是　　

He’s a mason by trade. 他的職業(yè)是石匠。　　

He is a cobbler by trade. 他是個(gè)皮匠。　　

by turns 輪流地，依序地　　

We drove the car by turns. 我們輪流開車。　　

They laughed and cried by turns. 他們一會(huì)兒笑一會(huì)兒哭。　　

by water 走水路，乘船　　

They will send the goods by water. 他們將從水路運(yùn)送這批貨。

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