deep lingual vein

例句：

1. 1. The deep lingual vein is a vital part of thebody's blood circulation system.
   深舌静脉是人体血液循环系统的重要组成部分。
2. 2. During surgery,the deep lingual vein is oftenused as a landmark for stitching.
   在手术中，深舌静脉常被用作缝合的标记点。
3. 3. The deeplingual vein canbe easily damaged during tooth extraction, which can lead to complications.
   在拔牙过程中，深舌静脉容易受损，可能导致并发症。