But i see it as necessary, a compromise, a trade-off . 但我认为这是必要的，是一种妥协，是一种交换。
2.
The phillips curve is an attempt to describe the trade-off between the rate of price inflation and the rate of unemployment of labour . 菲利普斯曲线是试图描述物价上涨率和劳动力失业率之间消长关系的曲线。
3.
A trade-off is necessary between the very heavy equipment costs associated with automation on the one hand and the test-program costs on the other . 在由自动化带来的极高的设备费用和试验计划的费用之间必须进行调整。
