be unable to

基本解释

Many marine biologists therefore worry that some species will soon be unable to make their protective homes.
因此，很多海洋生物学家担心，一些物种不久将无法生成保护性的外衣。
Others predicted that Joyon would be unable to handle IDEC’s enormous sails or that the boat could lose her mast in the rough conditions that any round-the-world sailor inevitably would face.
还有人预测茹瓦永无法控制爱德克艇上巨大的帆，艇上的桅杆也可能会在恶劣的环境中倒下，这是任何一个环球航行的水手都不可避免会遇到的。
The other broker will have no record of this conversation in its transaction store, and so it will be unable to continue any conversations started by the crashed broker.
另一个代理的事务存储中将没有这个对话的任何记录，因此它将不能继续由已崩溃的代理启动的任何对话。

People can also be unable to perform the simple activities of daily living without assistance because of the severe myofascial pain.
Now,looking at the situation from the outside, Shelly Kagan we might be unable to tell which one is really Shelly Kagan.
现在，从外部看一下这个情形，我们也许无法说出谁才是。
耶鲁公开课 - 死亡课程节选
And to be dead then, is to be unable to engage in P-functioning.
而死亡就是，失去了人格功能性。
耶鲁公开课 - 死亡课程节选

The fear they will be unable to support themselves let alone if they have children.
FORBES: Readers Say