内容分发网络的英文：
CDN (Content Delivery Network)
n. 内容；容量；目录；满足
v. 使满足
adj. 满足的，满意的
- No man is content
人心不知足 - Content is happiness
知足常乐 - No man is content with his lot
无人满意自身的命运和境遇
n. 投递，传送；交付；转让
- This is a fast delivery.
这是一个快投球。 - The mother had a difficult delivery.
那位母亲难产。 - He has an excellent delivery.
他有极优美的演讲风格。