C1
Expression
正式
意思
An indispensable and necessary condition.
🌍
文化背景
Used in legal and academic circles. Used in formal administration. Used in thesis defenses. Used in contract law.
💡
Use sparingly
Don't overuse it, or you will sound like a textbook.
意思
An indispensable and necessary condition.
💡
Use sparingly
Don't overuse it, or you will sound like a textbook.
自我测试
Complete the sentence.
A luz solar é ______ para a fotossíntese.
✓ 正确！
✗ 不太对。 正确答案： sine qua non
It is the essential condition.
🎉 得分： /1
视觉学习工具
练习题库
1 练习
Complete the sentence.
Fill Blank
C1
A luz solar é ______ para a fotossíntese.
✓ 正确！
✗ 不太对。 正确答案： sine qua non
It is the essential condition.
🎉 得分： /1
常见问题
1 个问题It is invariable.
相关表达
🔄
Condição indispensável
synonymEssential condition
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