Can是英语中的多功能词汇，具有情态动词与名词双重词性，发音为英 [kæn; kən]、美 [kæn; kən]。 其词源可追溯至古英语“cunnan”，原意为“知道、有能力”。

2 days ago · The use of can to ask or grant permission has been common since the 19th century and is well established, although some feel may is more appropriate in formal contexts. May is relatively …

can 和 can’t 是最常见的情态动词，用来表达能力、许可与可能性。 本篇详细说明句型结构、否定与疑问形式、常见错误与实用例句，并附练习题，帮助你完整掌握 can 的用法。

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You probably think college students are experts at sleeping, but parties, preparations for tests, personal problems and general stress can wreck a student’s sleep habits, which can be bad for the body and …

1. CAN总线 历史 CAN 是 Controller Area Network 的缩写（以下称为 CAN），是 ISO国际标准化的串行通信协议。 在当前的汽车产业中，出于对安全性、舒适性、方便性、低公害、低成本的要求，各种 …

I don't know how he can afford a new car on his salary. Cats can see in the dark. The water's not deep here - look, I can touch the bottom. I doubt whether I can finish the work on time. Computers can …

Modal “CAN” – With Explanations Exercises and Activities “ Can ” is a modal auxiliary verb and it is used to indicate abilities, to make requests, to indicate probability, or to give permissions. It is one of the …

Aug 18, 2025 · 四、例句与翻译 Can you help me with this map?（你能帮我看这张地图吗？） She can speak three languages. （她能说三种语言。） We are able to finish the task before deadline. （我们 …

情态动词 “can” 的三种用法 1 We can use can to talk about ability. 用 “can” 表 “能力”。 I can play the guitar I can speak Spanish, but I can’t fly. 2 We can use can to ask for or give permission to do …