Changes in the money supply affect the level of economic activity and the interest rate.

货币供给的变化影响经济活动水平和利率。

Children are supposed to get 60 minutes of physical activity every day.

儿童每天应该有60分钟的体育活动。

For lovers of the great outdoors, activities range from canoeing to bird watching.

户外活动爱好者可以参加从划船到观鸟的各种活动。

leisure activities such as watching television.

像看电视这种休闲活动。

ideas for classroom activities.

课堂活动的想法。

a jail term for terrorist activities.

一个针对恐怖主义活动的刑期。