two-way;bidirectional;bilateral ～电路bilateral circuit/～飞碟射击skeet shooting （体育）/～交流two-way exchange/～交通 two-way traffic /～开关two-way switch/～贸易two-way trade/～天线bilateral antenna/～线bidirectional line /～选择two-way selection (or choice)(refering to employer and employee choosing each other in a job market)