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N-COUNT If someone takes an overdose of a drug, they take more of it than is safe. (用药) 过量
Each year, one in 100 girls ages 15-19 takes an overdose.
每年，100个15至19岁的女孩中就有１个用药过量。
V-I If someone overdoses on a drug, they take more of it than is safe. 过量服用
He'd overdosed on heroin.
他过量吸食了海洛因。
N-COUNT You can refer to too much of something, especially something harmful, as an overdose. 太多的 (有害) 物质
An overdose of sun, sea, sand and chlorine can give lighter hair a green tinge.
过多的阳光、海水、沙和氯会给更浅色的头发带来点绿色。
V-I You can say that someone overdoses on something if they have or do too much of it. 过度拥有; 过度从事
The city, he concluded, had overdosed on design.
他下结论说，这座城市进行了过度的设计。
Jackson shocked the world when he died on June 25 from a drug over dose caused by an anaesthetic injected by his personal physician, who is now under investigation for causing his death.
09年6月25日，迈克尔·杰克逊因用药过量而过世的消息震惊了全世界。其私人医生现已接受调查。
The use of any antimicrobial for any infection, in any dose, and over any time period, forces microbes to either adapt or die in a phenomenon known as “selective pressure”.
针对某种感染使用某一剂量的某种抗菌剂一段时间，会迫使微生物或是适应，或是死亡；这种现象称为“选择压力”。
The dose is then tapered over time as the remaining normal adrenal gland resumes adequate production of cortisol hormone.
补充的的剂量应该随着时间逐渐递减，直到手术未切除的部分肾上腺恢复到可以分泌正常皮质醇激素的功能水平时停止。
But experts say taking even small amounts over the suggested dose can cause liver damage.
VOA: special.2009.07.21
But experts say taking even small amounts over the recommended dose can cause liver damage.
VOA: special.2009.07.08
"The patients in the intravenous therapy group are receiving ten times as high a dose of steroids over the first two days of hospitalization, as compared to patients in the oral therapy group."
VOA: standard.2010.06.21
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