名词
中文翻译：左腿
同义词：
['left leg', 'left side of the body']
例句：
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1.She was injured in a car accident and had to use her left crus for support.
她在一次车祸中受伤，不得不用左腿支撑身体。
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2. The doctor advised him to exercise his left crus regularly to prevent further injury.
医生建议他定期锻炼左腿以预防进一步的伤害。
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3.After the surgery, she had to wear a brace on her left crus to protect it from swelling.
手术后，她不得不戴上支架保护左腿不受肿胀影响。