您要查找的是不是：
- self retaining catheter 潴留导尿管
- self retaining cathete 留置导尿管, 自留导尿管
- After exposing the cervical spine the self retaining retractor is placed to provide optimal visualization. 垫起颈后部，以确定和保持正常的颈的生理弯曲。
- self retaining abdominal retractor 腹部自留牵开器
- Gosset's self retaining abdominal retractor 戈塞特(氏)腹壁自固定牵开器
- Balfour's abdominal retractor non-slip self retaining retractor 巴耳弗(氏)无滑动自固定拉钩
- I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。
- A dyke was built to retain the floods. 修了一道堤坝挡住洪水。
- I my self is going to make a sandwich. 我要亲手做个三明治。
- He was a wreck of his former self. 他身体坏得不成样子，已兴从前判若两人。
- Knowledge of self increases as one gets older. 随着年岁的增长，人们的自我认识也不断加深。
- He's not looking like his old self lately. 他最近看起来不像以前那样。
- He is my best friend, my second self, as it were. 他是我最好的朋友，或者说，是第二个我。
- He never has any thought of self. 他从不考虑个人得失。
- He is now out of all conceit with his former self. 他现在全盘否定了他原来的自己。
- The mental faculty of retaining and recalling past experience. 记忆，记忆力储存与回忆以往经历的大脑之能力
- The water can be drawn off with a catheter. 可以用导管把水吸出。
- I retain a clear memory of those days. 我还清晰地记得那些日子。
- He has managed to retain most of his fortune. 他设法保存了他的大部分财产。
- Concentrated study will help you to retain knowledge. 专心学习有助于你记住知识。
