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to sprain; to twist
to dampen (enthusiasm); to discourage; to dishearten; to dispirit; to depress; to unnerve; to crush
ランナーは足首を挫いた。
The runner sprained her ankle.
彼は膝を挫いて下山できなかった。
He twisted his knee and couldn't descend the mountain.
不安定な着地は、しばしば足首や膝を挫く原因となる。
Awkward landings often cause sprains to ankles and knees.