whenadv.什么时候；当 ... 时conj.然后；可是；当 ... 时pron.什么时候n.时间When We Dead Awaken当我们完全清醒时When is it for?三维平差when-issued trade当发行时交易,虚股交易WHEN YOU GET A COLD当你感冒的时候When and where?[法] 时间和地点when doctors differ当大学者们意见分歧时when winter sets in交冬以后When to Shake Hands三个三个地When do we eat?三巷When I wash my comb偶尔清洁用过的梳子