Germany has triggered the early warning level for gas supplies amid concerns that Russia could cut the flow unless it is paid in rubles.

由于担心俄罗斯可能会切断天然气供应（除非其以卢布支付），德国启动了天然气供应的预警级别。

The sound of a loved one chewing their food could trigger a sufferer's anxiety levels, or cause them to panic.

所爱之人咀嚼食物的声音可能会引发患者的焦虑程度，或导致他们恐慌。