1
countless + noun
countless 作定语，修饰名词，表示数量极大。
There are countless stars in the sky.
天空中有无数的星星。
无数的；数不清的
先理解核心含义，再看它在真实句子里的用法。
无数的；数不清的
too many to be counted
There are countless stars in the sky.
天空中有无数的星星。
同 uncountable。
Synonym of uncountable.
多得数不清
too numerous to be counted
大到数不完的。
Too large to be counted to.
There are countless stars in the sky.
天空中有无数颗星星。
AI contextual example
She has made countless attempts to learn the piano.
她无数次尝试学钢琴。
AI contextual example
There are countless possibilities for your future.
你的未来有无数种可能性。
AI contextual example
countless hours
无数个小时
WordNet
countless 作定语，修饰名词，表示数量极大。
There are countless stars in the sky.
天空中有无数的星星。
countless 作表语，与 be 动词连用，表示主语的特征。
The opportunities are countless.
机会是数不清的。
Not this
Countless of people attended the concert.
Use this
Countless people attended the concert.
'countless' 是形容词，不能像 'a lot of' 那样后面加 'of'。
Not this
There is countless star in the sky.
Use this
There are countless stars in the sky.
'countless' 修饰可数名词复数，谓语动词和名词都要用复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
无数次
I've told you countless times to be careful.
我告诉过你要小心无数次了。
无数个小时
She spent countless hours practicing the piano.
她花了无数个小时练习钢琴。
无数的机会
The new policy created countless opportunities for entrepreneurs.
新政策为企业家创造了无数的机会。
无数其他人
She helped me and countless others in need.
她帮助了我和无数其他需要帮助的人。
无数
Countless numbers of people attended the festival.
无数人参加了这个节日。
无数人曾进出这些高墙。（出自《肖申克的救赎》）
Countless men have come and gone through these walls.
无数人曾进出这些高墙。
Use countless naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
count（数）+ less（少）→ 多到数也数不完，即‘无数的’。
通常用于中性语域，在正式与非正式场合均可使用，多修饰可数名词。
通常用于修饰复数可数名词。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.