Modulation envelope
[电] 调幅波的包封
🧩 词语组成解析
modulation
[[ˌmɔdju'leiʃən]]
n. 调制, 调节, 语调\\n[计] 调制
envelope
['envələʊp]
n. 信封，封皮;壳层，外壳;包裹物;[生物学]膜，包袋;
en 表示\"进入…之中，包围\" +velop =cover（盖上） +e → .信封, 封套, 封袋, [天]包层, [数]包迹, [生]包膜
🗣️ 情景例句
I needed that like a hole in the head.
简直想要了我的命。
No man is so old, but thinks he may yet live another year.
人越活越想活。
However, when I was going out shopping last week, I noticed him in the garden near the gate.
然而上星期我正要出去买东西时，发现它正呆在花园里边靠门的地方。