base of metatarsal bone

例句：

1. 1. The doctor examinedthe patient's foot and found afracture at the base of the metatarsal bone.
   医生检查了患者的脚并发现在跗骨基部的骨折。
2. 2.After the surgery, the patient was advisedto keep the foot elevated and avoid weight-bearing activities until the base ofthe metatarsal bone healed.
   手术后，患者被建议将脚抬高，避免承重活动，直到跗骨基部愈合。
3. 3. The patient had to weara cast for several weeks while the baseof the metatarsal bone healed.
   患者不得不戴石膏几周时间，直到跗骨基部愈合。