GbEng
该药本身并无害处, 但与酒类同服则有危险. The drug is not harmful per se, but is dangerous when taken with alcohol.
熬几个晚上对任何人绝无害处. A few late nights never did anyone any harm.
问题不一定会发生, 但有备无患并无害处. The problem may not arise, but there's no harm in keeping our powder dry.
我们得听一个关於酗酒害处的冗长报告! We had to listen to a peroration on the evils of drink!