When an emergency occurs 当紧急情况发生时
When An Accident Occurs 时事故发生
When An Exception Occurs 当发生异常时
When This Occurs 发生这种情况时
When Accident Occurs 在事故发生时
When Problem Occurs 当问题发生时
When Vomiting Occurs 当发生呕吐时
Conception occurs when a single sperm fuses with an egg.
当一个精子和一个卵子结合时受孕就发生了。
El Nino, Spanish for "the child", occurs when surface ocean waters in the southern Pacific become abnormally warm.
“El Nino(厄尔尼诺)”在西班牙语中是“孩子”的意思,当南太平洋表层海水异常变暖时,会出现厄尔尼诺现象。
Another type of fossilization, known as carbonization, occurs when soft tissues are preserved as thin films of carbon.
叫做碳化的另一种石化类型,发生在软组织以碳薄膜形式被保存下来的过程中。
It's a virulent strain that occurs when a person with TB fails to complete the six to nine-month course of medication or catches TB from another person who is ill with a drug resistant-strain.
VOA: standard.2010.07.12
Moral hazard occurs when a risk management institution incentivizes you to do bad behavior-- to show bad behavior.
道德风险产生于,风险管理机构怂恿人们,采用有悖于道德与人性手段。
Dilution occurs when the company changes the number of shares asymmetrically-- not changing it for everybody.
摊薄是指公司,非对称地改变股数,而不是一概而论
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