1.spend on 花费

How many hours per week do you want to spend on this work?
你每个星期想花多少时间在这个工作上？

Our reply: So how much time do you typically spend on projects now?
我们的回答是：那么您们现在一般在项目上花多少时间？

2.hold back 隐瞒；退缩；抑制

Our kids don't hold back because they are afraid to fail. They are only afraid of failing us.
我们的孩子不会因为害怕失败而有所退缩，他们只是害怕让我们失望。

Therefore, it is prime time that we took positive steps with the strength of all human beings to hold back this grim tendency.
因此，该是我们采取有效措施，集中全人类的力量来阻止这种严峻的趋势发展的时候了。

3.tax rate 税率

Taxes are low, with a topincome-tax rate of 17% and a corporation tax of 35%, but they arehideously complex.
这儿的税收倒是不高，最高所得税率为17%，公司税为35%，但它的复杂程度令人发指。

Recall what Obama Sr. said in his 1965 paper: There is no tax rate too high, and even a 100% rate is justified under certain circumstances.
回忆一下1965年，老奥巴马在他的论文里写过的话：根本没有过高的税率，在某些情况下，即便100%的税收也是合理的。

4.domestic demand 国内需求；本地内部需求

But there are some tentative signs of a recovery in domestic demand.
但也有一些不明确的信号显示国内需求在恢复。