A doctor can check this for you; you can also monitor it yourself using a finger pulse oximeter, available in medical supply stores.
医生可以作这项检查。也可以自己用指尖脉博血氧仪来自行监测血氧含量，该血氧仪在医药用品商店有售。
Check for wrist or finger movement, there should be none with back tension. The rhomboid muscles in your back are the workers in this exercise.
检查手腕和手指的移动，它们应该不参与背加力撒放动作。背部菱形肌是背加力撒放的源动力。
Jim: he doesn't lift a finger! I bend over backwards cleaning up all day and he sleeps in until noon. Oh, and check this out... then he gets on the horn with his friends and invites them over.
吉姆：他连个手指都懒得动，我整天累死累活的打扫房间，他却一直睡到中午，唉，你听听看一起床后还打电话给朋友，邀请他们过来玩。
Well, the finger phenomenon has come to London and I'm here to check it out.
现在这股美甲风暴已经登陆伦敦，我现在就去看看。
I lost my check book, tore my jacket, and trapped my finger in a door all in one day-it never rains but it pours.
我这一天，支票本丢了，上衣也撕破了，还让门把手指夹了了——哎，真是祸不单行啊。
I lost my check book, tore my jacket, and trapped my finger in a door all in one day-it never rains but it pours.
我这一天，支票本丢了，上衣也撕破了，还让门把手指夹了了——哎，真是祸不单行啊。
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