I want to buy two center back tickets.

我想买两张中间后面位子的票.

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Fuse the interfacing to both halves of the under collar, stitch the center back seam.

把衬布粘合到两块半片的领里上.

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The three players in the back row are called left back, center back and right back.

后排的三名是左后卫 、 中后卫和右后卫.

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