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- A partial or complete duplication of one or both ureters occurs in about 1 in 150 persons. 大约150人里有一个人单侧或双侧有两条输尿管。
- For example， acute retention occurs if the obstruction is distal to the bladder， and anuria occurs if obstruction involves both ureters. 例如梗阻在膀胱以下部位可以引起急性尿潴留，而双侧输尿管发生梗阻则可出现无尿。
- For example， acute retention occurs if the o truction is distal to the bladder， and anuria occurs if o truction involves both ureters. 例如梗阻在膀胱以下部位可以引起急性尿潴留，而双侧输尿管发生梗阻则可出现无尿。
- If this process were bilateral, then the problem would originate in the bladder trigone or urethra (or the prostate around the urethra) or some process (such as a large neoplasm) that could impinge on both ureters. 如果病变是双侧的，原因可能是膀胱三角或尿道前列腺部的病变；或是其它能侵犯两侧输尿管的病变（如大的肿瘤块）。
- Language teaching is both a science and art. 语文教学既是一门科学又是一种艺术。
- Both Bach and Beethoven wrote classical music. 巴赫与贝多芬谱写的都是古典音乐。
- John was both clever and quick in the uptake. 约翰既聪明，理解能力又强。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
- The boxer is whaling away at his opponent with both fists. 拳击手用双拳向他的对手连续猛击。
- The new proposals affect both clergy and laity. 新的建议与神职人员和俗人都有关系。
- The long war of attrition exhausted the strength of both countries. 这场长期的消耗战耗尽了两国的力量。
- I work both on sunny days and on rainy ones. 我风雨无阻地工作。
- Ideas of inertia and complacency are both wrong. 无所作为和骄傲自满的论点都是错误的。
- You can't ascribe the same meaning to both words. 不要认为这两个词的意思是相同的。
- He got mad and pitched into Waller with both fists. 他大怒，挥起双拳向沃勒打去。
- Both New York and London have traffic problems. 纽约和伦敦都存在交通问题。
- Jack was fired twice but both times taken back. 杰克曾两次被解雇，但两次都被允许回去工作。
- One day we'll both get to see New York. 总有一天我俩都有机会看看纽约。
- The seeds and the pesticide are both ready. 种子跟农药都准备好了。
- There are many trees on both sides of the dell. 溪谷的两岸有许多树木。
