When a dam is built , the accumulating water presses down upon the rock below .

当大坝建成，逐渐积累的水压压向下方的岩石。

Eg. time presses and we must get back to work .

时间紧迫，我们得回去上班了。

Johannes gutenberg transformed his knowledge of wine presses into a printing machine capable of mass-producing words .

约翰内斯古登堡（johannesgutenberg）以自己掌握的葡萄压榨机知识为基础，发明了能够大量印制文字的印刷机。

In addition , I found the touch functionality was often sluggish and halting . It frequently took hard presses to activate icons on the screen .

此外，我还发现它的触摸功能经常反应迟缓和停滞，总要使劲按才能激活屏幕上的图标。

Ensure that the hip on your left side presses down the weight of the body on the floor .

确保全身体重将左侧臀部紧压在地板上。