envelope

现在分词：

动词现在分词: enveloping

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 tucked the letter into the envelope.

她把信折好塞进信封。

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

他拣起信封时，一把钥匙掉了出来。

Attach a stamp to the envelope and mail it .

把邮票贴在信封上寄出去。

The information is sent in a sealed envelope.

信息用封口的信封寄出。

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.

This envelope has come unstuck.

这个信封开了。

A good way to remove a stamp from an envelope is to soak it off.

从信封上取下邮票的一个好办法就是用水把它泡下来。

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。

Have you stuck down the back of the envelope?

信封背面开口处贴牢了吗？