相关例句

• When these side effects occur, they are called adverse reactions.(当这些副作用发生时，它们被称为不良反应。)
• Rattlesnakes occur in the warmer, drier parts of North America.(响尾蛇出现在北美温暖干燥的地区。)
• When exactly did the incident occur?(这一事件究竟是什么时候发生的？)
• Does it look like something that might occur in nature?(它看起来像自然界中可能发生的事情吗？)
• Most volcanoes occur at plate boundaries.(大多数火山的爆发发生在板块边界。)
• If Dollo's law is right, atavisms should occur only very rarely.(如果多洛定律是正确的，返祖现象应该很少发生。)
• These snails do not occur on low-lying coral islands.(这些蜗牛不会出现在低洼的珊瑚岛上。)
• They're more likely to occur in societies that frown on divorce.(这种关系更可能存在于反对离婚的社会中。)
• Additional breathing changes occur during REM sleep that are even more dramatic than the changes that occur during NREM.(在快速眼动睡眠期发生的额外的呼吸变化，甚至比那些在非快速眼动期发生的变化还要显著。)
• Such events occur only when the external conditions are favourable.(此类事件只有当外界条件有利时才会发生。)