邮件内容: " W8 t# O# @8 L- ] All of the Apus Launcher offers will add restrictions below:if the rentention rate is lower than 30%, the advertiser would not pay for the conversions and the campaigns should be paused asap. If the retention rate is between 30% and 40%, the payment will be 20% cut. If the ads are complained by users, it also won't be paid.- S4 } d5 r7 S: S+ l2 N