"When we do a knee replacement, we remove one or sometimes both of the cruciate ligaments - which are the ligaments in the center of the knee.

VOA: standard.2010.08.11

When we transfer both,one hemisphere might work sometimes, sometimes the other hemisphere,but never both.

当两半大脑移植时，有时半边能用，有时另外半边能用，但从不能同时。

耶鲁公开课 - 死亡课程节选

Well, both? Sometimes you've got to do some edits.

呃，都有。有时候你必需做些编辑。

有创意的网页设计师 - SpeakingMax英语口语达人

Sometimes one would pull on both oars while the other rested.

VOA: special.2010.03.06

If souls can't split,it can only follow one half of the brain, and that's why we'll get somebody that's got one half, sometimes the other half,but never both halves.

如果灵魂不能分割，只跟随一半大脑，才能有只有其中一个得到半个大脑的人存活，而没有两人同时存活的状况。

耶鲁公开课 - 死亡课程节选