They are temporaryexpedients. What a reason for lasting!
本是暂时堆放,有什么理由久存呢!
2
Various other designs have been tried since, but all were seen as temporaryexpedients intended to tide a patient over until the real thing became available from a human donor.
此后出现了各种不同的设计,但都只是在病人获得捐赠者的真正心脏之前起过渡作用的暂时替代品。
3
But if, as a nation, you can't manage this, you may be tempted to resort to artificial (and temporary) expedients.