when eye一个絮絮叨叨的人whenadv.什么时候；当 ... 时conj.然后；可是；当 ... 时pron.什么时候n.时间When used Egavga.bgi need support.使用时需Egavga.；bgi支持。When was this building constructed?When were pneumatic tyres invented?When will scientist conquer cancer?When does darling ablactation best?When did Columbus discover America?When will she regain consciousness?When'd you learn about electricity?When repairing closestool he whistle.一边吹口哨一边修马桶。When was the university established?