用“purification tablets”造句大全,purification tablets造句
It'sdeliveringhundredsoftonnesofhigh-energybiscuits,flourandwaterpurificationtablets,aswellasenoughmedicinetolast30,000peopleforamonth.Ifyou'regoingforanextendedperiodoftimeorifyou'replanningtodrin...