一旦质量超过这个限度，就开始进入气态巨行星的行列了。
Once the mass goes beyond that point, you start to get into gas giant territory.
大河巨川一旦分解成溪流，就失去了它们的威力。
The mightiest rivers lost their force when split up into several streams.
农业自然风险具有巨灾特性，一旦发生，损失程度严重且覆盖面广。
Agricultural and natural catastrophe risks are characteristics, because of loss and the level of serious coverage.
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