Hold the thermometer perpendicular to themiddleoftheforehead until a single point of light appears.
把温度计平置，让红灯照在额头中间直至两道红光会成一点。
2
Hold the thermometer perpendicular to themiddleoftheforehead until a single point of light appears.
将温度计平置，移近前额中央，直至温度计精确的显示出温度。
3
This indentation, or stop, should be both broad and deep and extend up themiddleoftheforehead, dividing the head vertically, being traceable to the top of the skull.