作业帮请问trade-off 和trade 的区别,以及better-off和better的区别,thx
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请问trade-off 和trade 的区别,以及better-off和better的区别,thx
请问trade-off 和trade 的区别,以及better-off和better的区别,thx
请问trade-off 和trade 的区别,以及better-off和better的区别,thx
trade-off只能是作为n.表示交换,协定,交易,平衡
trade不仅可作n.解释还可以作为vt.表示:用...进行交换
作为vi.表示:交易,买卖,经商,对换,购物
better-off
只能作为adj.境况较好的
beter不仅可作adj.较好的
还可以作为adv.更好的,更多的,更佳的
1．trade-off(between sth.and sth.)
：the act of balancing two thngs that you need or want but which are opposed to each other.
（在需要而又相互对立的两者之间）权衡
There is a trade-off between the benefits of...
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1．trade-off(between sth.and sth.)
：the act of balancing two thngs that you need or want but which are opposed to each other.
（在需要而又相互对立的两者之间）权衡
There is a trade-off between the benefits of the drug and the risk of the side-effects.
这种药的疗效与副作用之间有个权衡利弊的问题．
trade：the activity of buying and selling（买卖）
the arms trade 军火贸易
2．better off
be better off ：to have more money（比较宽裕）
Her promotion means that she is 100 dollars a week better off.
她的晋升相当于每月工资增加100美元．
better （good 的比较级）
You'd be better going by bus.你坐公交车去会好点．
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