单词	石油柏油
释义	同石油沥青--石油柏油
随便看	opportunistic infection opportunistic planning opportunistic sampling opportunistic species opportunists opportunist species opportunities opportunities--strengths-- threats opportunities to see opportunities to see {=ots} opportunity opportunity analysis opportunity charging opportunity class opportunity cost opportunity cost of capital opportunity costs opportunity,embrace an opportunity exploitation opportunity fire opportunity group opportunity identification opportunity knocks (at the door)only once. opportunity knocks at the door only once. opportunity knocks only once.