柯林斯词典dropper /ˈdrɒpə/ (droppers) 1. N-COUNT A dropper is a small glass tube with a hollow rubber part on one end which you use for drawing up and dropping small amounts of liquid. 滴琯 返回 dropper剑桥词典a small tube with a rubber container at one end that is filled with air and allows liquid to be given out in separate drops 滴琯 返回 dropper