be a brain-teaser
This puzzle is a real brain-teaser.
这个谜题真是个有趣的难题。
脑筋急转弯；智力题
brain-teasers — plural of brain-teaser
复杂的谜题或难题；有趣的难题
brain-teaser
复杂的谜题或难题
A complex riddle or puzzle.
This brain-teaser took me the whole afternoon to solve.
这个智力题花了我整个下午才解开。
用法提示：brain-teaser 作名词，指一道需要动脑的难题。
She enjoys sharing a brain-teaser with her friends at lunch.
她喜欢在午餐时和朋友分享一个脑筋急转弯。
用法提示：brain-teaser 作名词，表示有趣的智力谜题。
These brain-teasers are harder than they look.
这些智力题比看起来难多了。
用法提示：这里用复数形式 brain-teasers，名词，指多个难题。
This puzzle is a real brain-teaser.
这个谜题真是个有趣的难题。
注意复数形式 brain-teasers。
She enjoys solving brain-teasers.
她喜欢解有趣的难题。
grammar · medium
易错句子He solved brain-teaser quickly.
正确表达He solved a brain-teaser quickly.
brain-teaser 是可数名词，单数形式前需要不定冠词 'a' 或 'an'。
grammar · medium
易错句子I have many brain-teaser to solve.
正确表达I have many brain-teasers to solve.
brain-teaser 是可数名词，复数形式为 brain-teasers，在 many 后应用复数。
puzzle指任何需要思考的问题或游戏，范围更广；brain-teaser特指需要创新思维或逻辑推理的复杂难题，常带有趣味性。
riddle通常指以隐喻或双关形式呈现的谜语，答案需巧妙猜测；brain-teaser则多基于逻辑、数学或视觉问题，不依赖文字游戏。
Choose the next layer that will help you use brain-teasers with more confidence.
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