无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

A vessel traveling down a narrow channel,especially if the draft is nearly equal to the depth of the water,may set off the nearer side. This effect is known as().

A.smelling the bottom
B.squatting
C.bank suction
D.bank cushion

微信掃碼免費(fèi)搜題