turn-up bottom

基本解释

You could also embed the top-down approach within the second top-down approach and in turn, the bottom-up approach.
您也可以将自顶向下方法嵌入到第二个自顶向下方法，接着再嵌入到自底向上方法。
You do this by embedding, for example, the sideway approach within the top-down approach and in turn, the bottom-up approach.
例如，通过将旁路方法嵌入到自顶向下方法，接着嵌入到自底向上方法，您可以做到这一点。
When the onions are very soft and reduced, turn up the heat so they caramelise, then cook for another 12-15 mins, stirring along the bottom of the pan occasionally to mix in the brown sticky bits.
当洋葱充分变软和缩小后，在转大火12到15分钟，不断搅拌底部，使洋葱微微发焦，变成棕色小片。