In those cases, the user has to surround the value with quotation marks and then can't use quotation marks inside the value (they can be used by themselves in a value, though).
在这样的情况下，用户必须在值的周围加上引号，而在值的中间不能使用引号(尽管它们可以在值中被它们自己所使用)。
Surround Yourself with Positive Energy - Be surrounded by friends and family.
保持积极的心态—与朋友和家人在一起。
Such scaffolds might be used to repair damaged arteries by mimicking the natural matrices that surround smooth muscle cells in vessel walls.
通过模拟血管壁平滑肌细胞周围基质，这种支架可用于修复血管损伤。
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