我们有可能破坏这个地区的生态平衡。
观光客常常破坏岛上微妙的自然生态平衡。
Tourists often disturb the delicate balance of nature on the island.
然而有些科学家警告，如果任由细菌生长，可能会破坏海滩的生态平衡。
Some scientists, however, warn that encouraging bacterial growth could upset a beach's ecological balance.
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