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Expand - give more details about sth. (enlarge on can be used this way too but expand on is much more common) you can expand on some of your points to extend your essay. Sep 2, 2022例如： objects will expand when they are heated and contracted when they are cooled.

物体受热膨胀，受冷则收缩。 muscles can expand or contract as we are doing exercises. 在pytorch中, 假设c为2 * 5 * 1 * 1的tensor, 利用 c = c.expand (c.size (0), c.size (1),.