How to improve it

提高───increase;怎么───Yes?

an alarming increase in crime───犯罪活动骇人的增加

the remorseless increase in crime───犯罪的持续增长

Sugar is added to the wine during fermentation to increase the alcohol level.───发酵时在葡萄酒里加糖以提高酒精浓度.

While the increase in homicides is alarming, it is nothing compared to what is to come in the rest of the decade.───虽然凶杀案的增加令人担忧，但和这个十年里接下来的几年将要发生的事相比却是小巫见大巫了。

These nests increase in size each year, and can eventually weigh down the branch.───这些巢每年都在变大，最终可能会把树枝压弯。

The increase slowed to 0.4 percent, possibly indicating the start of a downtrend.───增长幅度降到了0.4%，可能意味着下降的开始。

The registration of the university shows an increase of 10 percent over last year.───这所大学的注册人数比去年递增了10%.

The union had sought a wage increase and a shorter work week.───工会寻求增加工资，缩短每周工作时间。