Sometimes this stays unnoticed, because the customer doesn't get a mail telling her that it was filtered out.

有时这种停留察觉，因为顾客都不告诉她，这是一个邮件过滤了。

youdao

Sometimes this stays unnoticed, because the customer doesn't get a mail telling her that it was filtered out.

有时这种停留察觉，因为顾客都不告诉她，这是一个邮件过滤了。

youdao