VOA慢速英语:Will Cost of Cocoa Raise the Price of Valentine's Day?

spend on把…花在…
例句：He doesn't spend much time on his homework.
他花在作业上的时间不多。

2. The chocolate industry worries that supply will not keep up with demand.

keep up with跟上, 不落人之后
例句：We have to work hard to keep up with these excellent students.
为了跟上那些优秀学生, 我们得努力学习了。

3. The chocolate industry needs farmers to produce more cocoa to meet the growing demand.

meet the demand满足需要;符合要求
例句：The supply is inadequate to meet the demand.
供不应求。

4. For the first time, farmers, processors, chocolate multinationals, civil society are working to make sure that the cocoa economy in the world is sustainable -- everybody chipping in to make it stay that way

chip in共同出钱, 捐助, 凑钱
例句：If everyone chips in we could get her something really nice.
如果每人凑钱, 我们就能为她买点相当不错的东西。

5. Chocolate makers like Mars and Nestle are putting money into the effort.

put into使处于某种状态
例句：The regulations have been put into practice on a trial basis.
这些规定已开始试行。