My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了,我想是因为我没装防火墙。
My wife and I still remember the first day we arrived in Beijing.
我太太和我仍然记得到北京的第一天。
and there is a very firm rule that the bank has no right or authority to pay out a customer's money on a cheque on which its customer's signature has been forged.