The metal plates used in making ships used to be riveted together, but now they are usually welded.
造船中使用的金属板过去使用铆, 现在则常用焊
。
The metal plates used in making ships used to be riveted together, but now they are usually welded.
造船中使用的金属板过去使用铆, 现在则常用焊
。
:以上例句、词
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