late 14c., envolupen, "be involved" (in sin, crime, etc.), from Old French envoleper "envelop, cover; fold up, wrap up" (10c., Modern French envelopper), from en- "in" (see en- (1)) + voloper "wrap up," which is of uncertain origin, perhaps Celtic (see Gamillscheg, Diez) or Germanic ("Century Dictionary"). Literal sense is from 1580s. Related: Enveloped; enveloping.
实用例句
1. Thomas crumpled the empty envelop and tossed it accurately into the wastebasket.
托马斯把空信封捏成一团,随手很准确地扔在废纸篓里.
来自辞典例句
2. They pushed the envelop of pop music and became the biggest band of the 20 th century.
他们不断革新流行乐界,因而成为20世纪最伟大的乐团.
来自常春藤生活英语杂志-2006年4月号
3. Which include envelop generator, low - freq oscillator, envelop control, manual control, etc.
这些手段是包络发生器 、 低频振荡器 、 包络控制 、 手动控制等.
来自互联网
4. The papers are falling out of the envelop, push them back.
论文从封袋里掉出来了, 把它们放回原处.
来自互联网
5. All combine to form a layer of mist to envelop this region.