您要查找的是不是：
- 区district
- 工作区workaround
- 区号district number
- Valsalva区zona Valsalvae
- 学区school district
- Valsalva窦Sinus of Valsalva
- 红灯区red-light district
- Valsalva动作Valsalva maneuver
- Valsalva试验Valsalva maneuver
- 厂区factory; mill; plant; works
- Valsalva操作法Valsalva maneuver
- 大区pergana
- Valsalva窦瘘修复术Repair of fistula of sinus of Valsalva
- 明区hyalomere
- Valsalva视网膜病变valsalva retinopathy
- 湖区limnological region
- 先天性Valsalva窦动脉瘤Congenital aneurysm of sinus of Valsalva
- 港区dockland
- Valsalva窦动脉瘤切除术Aneurysmectomy of sinus of Valsalva; Excision of aneurysm of sinus of Valsalva
- 图区image area
