1·The doses I suggested for adults could be halved or quartered.
我建议的成人剂量可以减半或减至四分之一。
—— 《柯林斯英汉双解大词典》
2·It has proved toxic at some doses in animals and so cannot be used in humans.
一定剂量的苯丙胺是确证对动物有毒的，因此不能用于人类。
3·She insists that it's exposing workers to unnecessarily high doses of radiation.
她坚称，这正让工人们暴露在不必要的高剂量辐射下。
4·Large doses can cause trouble, including excessive bleeding and nervous system problems.
大剂量会引起麻烦，包括出血过量和神经系统问题。
5·A patient may also acquire a tolerance for a certain drug, which means the patient has to take ever larger doses to produce the desired effect.
患者还可能对某种药物产生耐受性，这意味着患者必须服用比以往更大的剂量才能产生预期的效果。