政府官员最终是要对他们的行为负责任的。

Public officials can finally be held accountable for their actions.

《柯林斯英汉双解大词典》

自2007年以来，前往南极洲的中国游客数量一直在增加。因此，现在是中央政府采取一些有效措施来促进负责任的旅游的时候了。

The number of Chinese tourists to Antarctica has been increasing since 2007. Therefore, it's time the central government took some effective measures to promote responsible tourism.

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