"We have teams of people just going door-to-door ensuring that every child under five is vaccinated with drops."
VOA: standard.2010.08.02
It could be that what you want just drops into your lap without you knowing about it.
很有可能你想要的东西,在你不经意间就到来了
If the temperature drops below a certain level it sends a signal, 'turn on the heat', and that signal stays on until it gets a negative signal to turn off.
如果温度降到一定程度以下时,探测器会发送一个信号,打开加热器,直到加热器再收到关闭的信号,它就会一直开着
The World Health Organization currently recommends that patients begin taking AIDS medicines, called antiretroviral drugs, when symptoms appear or when their CD4 count drops below 200.
VOA: standard.2010.07.21
It's really,really important that every time we reach every child with polio drops."
VOA: standard.2010.08.02
It was one man's vision that if just two drops, from a bottle like this one, could prevent children from getting the disease, that global eradication could be within reach.
VOA: standard.2010.08.02
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