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，很多海洋生物學家擔心，一些物種不久將無法生成保護性的外衣。
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.
還有人預測茹瓦永無法控制愛德尅艇上巨大的帆，艇上的桅杆也可能會在惡劣的環境中倒下，這是任何一個環球航行的水手都不可避免會遇到的。
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.
另一個代理的事務存儲中將沒有這個對話的任何記錄，因此它將不能繼續由已崩潰的代理啓動的任何對話。

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.
現在，從外部看一下這個情形，我們也許無法說出誰才是。
耶魯公開課 - 死亡課程節選
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。
耶魯公開課 - 死亡課程節選

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