Modulation envelope
[電] 調幅波的包封
?? 詞語組成解析
modulation
[[?m?dju'lei??n]]
n. 調制, 調節, 語調\\n[計] 調制
envelope
['env?l??p]
n. 信封，封皮;殼層，外殼;包裹物;[生物學]膜，包袋;
en 表示\"進入…之中，包圍\" +velop =cover（蓋上） +e → .信封, 封套, 封袋, [天]包層, [數]包跡, [生]包膜
??? 情景例句
The movie was a smash.
這個電影很過癮。
This soup would taste better if it had more salt in it.
如果多放點鹽，這湯會更好喝的。
Dan wondered why he was wanted by the police, but he went to the station yesterday and now he is not worried anymore.
丹奇怪警察為什么找他，但昨天還是去了，結果他一再擔心了。