Hemoglobin, as you know, is an oxygen carrier and so red blood cells concentrate in bags of hemoglobin which circulate in your blood and they carry oxygen.

众所周知,血红蛋白可以携带氧气,含有大量血红蛋白的红细胞,在全身循环,以携带氧气

耶鲁公开课 - 生物医学工程探索课程节选

Then that insulin would accumulate in the muscle, enter the blood, and circulate all over the body and so you'd turn the muscle into an insulin making tissue.

胰岛素会在肌肉组织中累积,并进入血液,使其在全身循环,如此就使肌肉成了能产生胰岛素的组织

耶鲁公开课 - 生物医学工程探索课程节选

And those stories tend to circulate and contribute to a lot of reluctance to seek help for mental health problems.

NPR: Race and Mental Health in Katrina's Aftermath

We add momentum and velocity to the TV spot (the rain), capture it and circulate it back into the on-line process, thereby advancing the brand and buying cycle.

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But it would ultimately force the central bank to buy such securities as foreign bonds, corporate bonds and Japanese government bonds and possibly even land, to make sure that the money finally begins to circulate and doesn't get stuck in a banking sinkhole again.

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