sure

Collocations

be sure of

对…有把握，确信

I'm not sure of his exact address.我不太确定他的确切地址。

be sure to do

一定做，务必做

Be sure to lock the door before you leave.离开前务必锁好门。

make sure

确保，查明

Make sure you turn off the lights before going to bed.确保上床前关灯。

for sure

肯定，毫无疑问

He will win the race for sure.他肯定会赢得比赛。

sure enough

果然，不出所料

I thought it would rain, and sure enough it did.我猜会下雨，果然下了。

a sure sign of

…的明确标志

Memory Tip

联想“舒尔”读音，想象舒服地点头说：“当然，我确定。”

Context & Register

“sure”作为形容词表示“确信的”时，语气中性，通常用于日常对话、表达观点或确认信息，口语中很常见。注意在正式书面语中可能更常用“certain”。

Grammar Note

常与be动词连用，后接不定式、介词短语或that从句；make sure表示确保。

Pronunciation & Spelling

In General American, all these words share the same stressed vowel /ʊr/ and the '-ure' spelling. Note that 'sure' begins with /ʃ/ while others have different initial consonants. In British English, some (e.g., 'pure', 'cure') may be pronounced with /jʊə/, but the rhyme is still close.

High-value vocabulary

该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。

Usage priority

Collins 词频等级为 5，建议结合例句记忆，而不是只背中文释义。

Learn the forms together

页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。