词汇	overwater flight
释义	overwater flight 水上飞行
随便看	elective purchaser elective radiotherapy elective reduction elective resolution electives Electives elective share elective shares electives in economics decision sciences elective spinal irradiation elective spoken-English course elective sports course elective study dies elective subject elective subject of study elective subjects elective surgery Elective Surgical Procedure Elective Surgical Procedures elective system elective theory elective theory of antibody formation elective theory of immunity elective translation course elective treatment