Unfortunately these reactors are ageing and unreliable .
不幸的是,这些反应堆都易老化且不可靠。
And they are unreliable preservers of the past .
并且用博物馆留存过往也不可靠。
Even travel and communication between our two great nations presented a challenge : a few unreliable telephone lines and no direct flights connected us .
甚至这两个大国之间的旅行和通讯都还是个难题:只有很少的一些不可靠的电话线路,也没有直飞航班。
Banking went from " knowing your customer " or local lending , to relying on what have proven to be unreliable fico credit scores and centralised underwriting .
银行业从“了解客户”或进行地方贷款,转变为依赖已被证明是不可靠的fico信用评分和集中承保。
A clear majority of west europeans regard russia as an unreliable energy supplier but remain resistant to paying more for alternative supplies from renewable energy sources .