envelope
/ˈɒn.və.ləʊp/
A2 · Elementary★★★★☆
Simple Meaning
用于邮寄信件或卡片的扁平纸制容器。
When to Use
💬Daily Conversation💼Workplace English
Elementary — simple everyday language
Examples in Conversation
“你能把桌上那个信封递给我吗？”
“我得趁还没忘记，把这张请柬放进信封里。”
Learning Path
▶Full Definition
A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.