波兰于2005年加入欧盟,自那以后,已有超过50万人移居英国、德国、西班牙和意大利。
Poland joined the European Union in 2005 and since then more than half a million people have moved to Britain, Germany, Spain and Italy.
我曾被狗咬过,自那以后就一直害怕狗。
I was bitten by a dog once and I've been afraid of them ever since.
自那以后,再也没有任何报道说发现这种鱼,也没有人圈养这种鱼。
Since then, no discovery has been reported and no such fish has been kept in captivity (圈养).
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