1.advance both by land and water; conduct a combined operation by army amd navy; Land and marine forces are to move simultaneously.; The advance began on land and on water.
advance by both land and water
习语_星之飞痕_新浪博客 ... by twos and threes 三三两两 advance by both land and water水陆并进 track and field 田径 ...
水陆并进