乔治掏出一串钥匙，去设法开这把复杂的锁。
George took out a bunch of keys and went to work on the complicated lock.
水力压裂法引起轻微地震一家英国能源公司说，可能是它的水力压裂工程导致了今年春天英国兰开夏州一连串轻微的地面震动。
Fracking tremors a British energy company says that its hydraulic fracturing (' fracking ') project probably caused the cluster of small earthquakes that struck Lancashire, UK, this spring.
现在字符串不是用这种方式表达的，你没有看到字符串里有开括号闭括号，字符串中间也没有逗号，但是它有同样的属性。
Now it is not represented this same way. You don't see strings inside these open parens and closed parens.
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