antibiotics
[ˌæntɪbaɪ'ɒtɪks]
n.
（用作复数）抗生素;
（用作单数）抗生物质的研究;
抗生素，抗菌素( antibiotic的名词复数 );
例句:
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The use of antibiotics is permitted only in extremis.
只有在万不得已的情况下才允许使用抗生素。
来自柯林斯例句
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Overprescribing of antibiotics can lead to bacterial infection resistance.
来自BBC
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Antibiotics were of no use, neither were other pharmaceuticals.
抗生素没有效果，其他药物也没有作用。
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If the test is positive, a course of antibiotics may be prescribed.
如果化验结果呈阳性，可能会开一个疗程的抗生素。
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This may include antibiotics to kill the invading bacteria.
来自BBC
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When diarrhoea persists antibiotics may help to reduce symptoms.
来自BBC