Today's Sentence
Video not in English?If you do try your muscles will tense, your pupils will dilate, and your heart rate will increase.
Original Video:Brain Tricks - This Is How Your Brain Works
Key Vocabulary
1. dilate
dilate
[ˈdaɪ.leɪt](v.)
Let's challenge!
[ˈdaɪ.leɪt](v.)
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