underwater

英文解釋：

形容詞 underwater:

1. beneath the surface of the water
   同義詞：submerged, submersed
2. growing or remaining under water
   同義詞：subaqueous, subaquatic, submerged, submersed

英文造句：

1. A trademark used for an underwater breathing apparatus.
   水肺，水中呼吸器用於水下呼吸裝備的一種商標
2. A ship equipped for laying explosive underwater mines.
   布雷艦艇裝備有布水雷裝置的艦艇
3. This machine has been specially adapted for use underwater.
   這機器是為水下使用而特別改裝的。
4. This machine has been specially adapted for underwater use.
   這機器是為水下使用而特別改裝的。