It also, however, presents a problem, because attachments can take a long time download.
但这样也存在问题，因为附件要话很长的时间来下载。
It also, however, presents a problem, because attachments can take a long time to download.
但是，电子邮件也会带来问题，因为附件的下载可能需要很长时间。
It also, however, presents a problem, because attachments can take a long time to download.
但是，电子邮件也会带来问题，因为附件的下载可能需要很长时间。
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