单词	To be of service
释义	To be of service 帮助；有帮助
随便看	ethylene spherical tank Ethylene Succinic Acid ethylene sulfide ethylene sulfocyanate ethylene sulfocyanide ethylenesulfonic acid ethylene sulfonic acid ethylene-sulfonic acid ethylene tanker ethylene tar ethylene tar pitch ethylene technology ethylene telomer ethylene terephthalate ethylene terephthalate polymer ethylene-tetracarboxylic acid ethylenetetrachloride ethylene tetrachloride ethylene tetrachlorides ethylene-tetrafluor-ethylene ethylene-tetrafluoro-ethylene ethylenetetrafluoroethylene copolymer ethylene tetrafluoroethylene copolymer ethylene-tetrafluoroethylene copolymer ethylenetetrafluoroethylene copolymer fiber