underwayadj.正在进行中的
undertakern.承办人;殡仪业人员
underwater TV水下电视
underwater bed下游河床
underwater cut水下切割
underwater kit潜水装具
underwater gun水下枪械
underwater run水下弹道段
Underwater tow水下拖曳
underwater GPS水下GPS
"submerged rocks"
"viewing subaqueous fauna from a glass-bottomed boat"
"submerged leaves"