Instead, I propose that this is a very special case indeed, and that XML namespace usage should be restricted to cases such as this where more reasonable paths are not available.
相反，我认为这确实是一种非常特殊的情况，应该严格限制XML名称空间的使用，比如只在没有其他更好办法的情况下使用。
The CPU usage, amount of virtual memory consumed, file sizes, and core file sizes can be restricted with the ulimit command.
CPU使用、消耗的虚拟内存量、文件大小和内核文件大小可以使用ulimit命令限制。
By comparison, Spotify's free version is AD supported, restricted to desktop usage and caps the number of song plays after six months.
相比之下，Spotify的免费版是有广告赞助的，仅限于电脑使用，而且六个月后可听歌曲的数量就会受到限制。
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