下三里，经穴别名，出《针灸集成》，即足三里。穴位于膝关节髌骨下，髌骨韧带外侧凹陷中，即外膝眼直下四横指处。
在接下来的三年里，张宇在李强的帮助下，努力学习，积极参加各种活动，锻炼自己的能力。
During the following three years, Zhang Yu made great efforts to study and took an active part in different activities to develop her abilities with the help of Li Qiang.
如果上面的三个步骤都不起作用，你可以查一下这个单词。你可以在字典里找到这个词——或者在书里，或者在网上。
If the three steps above don't work, you can look it up. You can find the word in a dictionary—either a book or online.
对三头阿拉斯加的黑熊的心率追踪显示出它们在冬眠前的平均每分钟 55 下降低到了冬天里每分钟飘忽不定的 14 下。
Heart rate tracking for three of the Alaska bears showed a drop from 55 beats per minute on average before hibernation to 14 erratic ones per minute in winter.
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