按下：用手或其他物体施加压力使其向下移动或固定在某个位置。
... bear down克服 press down on压在…上 bear down on逼近 ...
And there are no gears to shift-it's all torque from the second you press down on the accelerator.
该车没有齿轮的转动，它完全靠第二次踩下的油门的扭矩。
On a physical keyboard, you touch the keys to determine position and then press down on them to type.
使用物理键盘时，你直接触摸并选择按键，按下键来进行输入。
What this does is it actually lets you press down on the screen when you are tapping on an icon or trying to type out an email.
它的作用是，当你点击图标或者想发出邮件时，可以让你点击屏幕。
Before leaving Washington, King Abdullah sat down for an interview broadcast Sunday on the NBC television news program Meet the Press.
VOA : standard.2009.04.26
Do not press down on the onions with a spatula or jack up the heat to try and accelerate this process.
There is, too, a troubling knowingness, an uneasiness about how seriously the novel should press down on its seriously interrogative title.
Press down on the center, spreading the dough, or roll into a 7- or 8-inch circle -- the outer border a little thicker than the inner circle.