1、impression

印象;感想

What were your first impressions of college?

你对大学的第一印象是什么？

My impression is that they are totally out of control.

我的感觉是它们完全失去了控制。

(通常有悖事实的)感觉,假象

I don't want to give the impression that I'm running away from the charges.

我不想给人一种我在逃避指控的感觉。

He cleverly inserted mirrors above the window to create an impression of space.

他巧妙地在窗子上面镶嵌了几面镜子，以营造一种空间感。

产生影响;起作用

He has told me his plans and he's made a good impression on me.

他告诉了我他的计划,给我留下了一个好印象。

The aid coming in has made no impression on the horrific death rates.

逐渐到达的救援对可怕的死亡率并没有起到什么作用。

2、hold back

（使）犹豫;（使）退缩

The administration had several reasons for holding back.

政府因为几个原因而犹豫不决。

Melancholy and mistrust of men hold her back.

忧郁的性格和对男人的不信任使她裹足不前。

阻挡;阻止

Stagnation in home sales is holding back economic recovery.

国内销售的停滞不前正阻碍着经济复苏。

Jake wanted to wake up, but sleep held him back.

杰克想要醒来，但睡意使他又沉入梦乡。

抑制住,忍住(眼泪、笑声等)

She kept trying to hold back her tears.

她一直在试图抑制住眼泪。

He could no longer hold back convulsive laughter.

他再也忍不住，前俯后仰地大笑起来。