tear drop let-down修正角穿云
drop-down box下拉框
Drop-down notifications下拉通知
drop-down function降落函数
drop-down gearbox减速齿轮箱
Aspect Drop-down宽高比下拉列表
Curve drop-down跌降曲线
drop-down curve下降曲线
drop-down list下拉菜单;下拉式清单;下拉式列表;下拉列表
同义词：sinkdropdrop down