The money was for a needle-exchange program, but the amount was illegal.

这笔钱用于针头交换计划，但其数额却是非法的。

youdao

While this illegal activity was once commonplace, it happens less frequently now, owing to active policing by the Federal Securities and Exchange Commission.

虽然这种非法活动过去相当普遍，但现在由于联邦证券交易委员会的积极管制，这类活动少多了。

youdao

It also liaises regularly with Mainland and overseas law enforcement agencies for exchange of intelligence to prevent and neutralise illegal activities.

该科更定期与内地和海外的执法机构联络，交换情报，消弭和防止非法活动。

youdao

While demonstrators rampaged outside, a parliamentary committee was hearing evidence this week about an illegal exchange of land by Vatopedi monastery on Mount Athos.

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Some shops were looted and illegal foreign-exchange dealers beaten up before the enraged but unarmed soldiers clashed with the police.

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One official estimates that a quarter of outflows through the current account is in fact disguised capital flight: dollars earned from false invoicing, illegal foreign-exchange deals and other nefarious activities.

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