This allows you to avoid waiting for potentially slow calls back to your servers and minimizes the amount of data needed from your servers.

这让您无需等待可能缓慢的服务器回调，并且最小化了对服务器上数据的需求量。

youdao

So, if you can keep your Ajax calls short and to the point, you can prevent the user spending endless time waiting in vain for elements to refresh or respond.

因此，如果您能够保持 Ajax 调用简短和准确，可以避免用户花费无止尽的时间来等待元素刷新或响应。

youdao

Since your job doesn't involve answering other people's calls, I would guess that your callers are waiting for you to look up information while they hold.

没错，一般情况下，我都会让客户在电话上等着别挂，我马上设法帮他们解决问题。

youdao