当然全在冷水里洗会节省更多的能源。

Using only cold water saves even more energy.

youdao

小洋葱在沸水里烫一下。去皮。加冷水。少许盐。糖和黄油。煮熟。

Cook Onions in a little salted water, sugar and butter until tender and caramelised.

youdao

小洋葱在沸水里烫一下。去皮。加冷水。少许盐。糖和黄油。煮熟。

Cook Onions in a little salted water, sugar and butter until tender and caramelised.

youdao