Level A1 :
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RANDOM
Level A2 :
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Level B1 A:
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Level B1 B:
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| (SAT5000) invert | Definition: To turn inside out, upside down, or in opposite direction. |
| (ESS4000) invert | Definition: To invert something means to turn it upside down. | Example: →He inverted the bicycle to make repairs on the wheels. |
| HSK5000 A1+A2+B1 |
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| HSK5000 B2 + C1 |
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