达扬教授称，在欧洲，那些最可疑的多溴二苯醚七八年前就已被禁用。

In Europe the most suspect PBDEs have been banned for seven to eight years, says Dr Dayan.

youdao

那都是七八年前在滨河路的事了。

That was seven or eight years ago, in the Strand.

youdao

It's a fully implantable artificial heart, and it was introduced about seven or eight years ago now.

它是一个完全植入式人工心脏,它是在七八年前发明

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