envelope

第三人称单数：

动词第三人称单数: envelops

更多词形：

名词: enveloper | 动词过去式: enveloped | 动词过去分词: enveloped | 动词现在分词: enveloping | 动词第三人称单数: envelops |

单词例句：

She needs a stamp and an envelope.

她要一张邮票和一个信封。

As she picked up the envelope, a key dropped out.

她拾起信封时，一把钥匙掉了出来。

Judy collects stamps, and the stamps on the envelope made her mouth water.

朱蒂爱好集邮，所以这信封上的邮票颇使她心动。

Please put it in the envelope with your letter .

请你把它和信一起放信封。

He ripped off one end of the envelope and pulled out the letter.

他撕开信封的一端，抽出里面的信件。

Put a stamp on the envelope, will you?

在信封上贴张邮票，好吗？

I put some photographs in the envelope.

我在信里夹了几张照片。

The envelope singal of the FR signal is decteced.

可译为:频率(响应)信号的包络信号获得了检测.

I didn't open your letter, the envelope came unstuck.

我没有拆你的信，信封本来就没粘牢。