undertown.底流；退浪；下层逆流underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的underdetermined blind source separation欠定盲源分离undersecretary for international affairs负责国际事务的副部长Underlying socket stream context options底层套接字流上下文选项underdetermined blind sources separation欠定盲分离Underpants.Often used in the plural.内裤。常用复数形式underhand drift cut-and-fill stoping下向进路胶结充填采矿法Underflow interception water source site截潜流水源地underprivileged sections of the community社区的弱势阶层underfloor air distribution system plenum地板送风静压箱under-cover-reverse-building method盖挖逆作法

1. The undercroft also is my zone!
   地下室还是我的！
2. That rich man's undercroft is bigger than Tom's room.
   那个有钱人的墓穴比汤姆的房间还大。