单语范例（未经PONS编辑处理）
In recent years both magazine and conference have branched out to discuss anti-spam issues as well as malware.
en.wikipedia.org This method usually prevents reception of an e-mail in the first place; thus, common anti-spam features like quarantine, redirect or delete can not be applied.
en.wikipedia.org Within a few years, the focus of spamming (and anti-spam efforts) moved chiefly to e-mail, where it remains today.
en.wikipedia.org There, advanced services such as divert, copy, archiving and anti-spam can be applied before messages are delivered.
en.wikipedia.org It advocates the creation and adoption of anti-spam laws.
en.wikipedia.org