the long duration of time

I can sort of understand their reservations over higher royalties at the moment, but nevertheless a contract that lasts for the duration of copyright is a hugely long time.

我能够理解他们对高版税有所保留，但是合同中的版权期限时间漫长。

Response time - how long each page takes to download and the duration of an entire transaction.

响应时间（Response time） - 夹在网页的速度，或者完成整个交易的时间。

Smile at two neighbors. However, it’s hard to concentrate on these five improvements for a long duration of time, and inevitably, one or two will get lost in the shuffle.

然而，想要长时间的集中这5件小事并坚持下来，却很难，总会有一两件在混乱中不可避免的被遗漏掉。