1.drug addiction 藥物成癮,毒癮
例句:She stood by him as he spiralled into drug addiction.
她支持他當藥物成癮無法自拔時 。
2.is extracted from 從...中提取
例句:This substance is extracted from seaweed.
這種物質(zhì)是從海藻中提取的 。
3.account for 占...比例,解釋
例句:How do you account for this.
你對這件事怎么解釋?