在管子上要弄弯的地方做个记号。

Mark the pipe where you want to bend it.

《牛津词典》

敲弯，敲平，通过弄弯或弄扁突出的一端来固定(如钉子或螺丝钉)。

To fix or secure (a nail or bolt, for example) by bending down or flattening the pointed end that protrudes.

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日本超市只为客户提供塑料袋，但是动漫店一般都会把顾客买的商品放在厚厚的纸袋里，这样就能确保这些商品在回家的路上不被划伤弄弯。

Japanese supermarkets only use plastic bags, but anime shops regularly place customers' purchases in long bags made of thick paper, so that their goodies don't get bent or scratched on the way home.

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