B1
Idiom
非正式
意思
To observe attentively, often with a hidden or cautious intent.
🌍
文化背景
Very common in informal speech, especially in urban areas.
💡
Context is key
Only use this with friends.
意思
To observe attentively, often with a hidden or cautious intent.
💡
Context is key
Only use this with friends.
自我测试
Fill in the blank with the correct verb.
Eu ______ de butuca na porta.
✓ 正确！
✗ 不太对。 正确答案： estou
Use 'estar' for temporary states.
🎉 得分： /1
练习题库
1 练习
Fill in the blank with the correct verb.
Fill Blank
B1
Eu ______ de butuca na porta.
✓ 正确！
✗ 不太对。 正确答案： estou
Use 'estar' for temporary states.
🎉 得分： /1
常见问题
1 个问题No, it is too informal.
相关表达
🔄
Ficar de olho
synonymTo keep an eye on
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