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1. The dentist had to remove the patient's locked tooth before he could continue with the procedure.
这位牙医在继续治疗之前，必须先取出患者的锁住牙齿。
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2. The child was so scared that she couldn't open her mouth, making it impossible for her to eat or drink.
这个孩子太害怕了，张不开嘴，以至于她无法吃东西或喝水。
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3.The dentist explained that the locked tooth was caused by an accident and would need to be removed surgically.
牙医解释说，这颗锁住的牙齿是由于一次事故造成的，需要通过手术来移除。