threshold的解释，在云词典中threshold是什么意思？

threshold

['θreʃhәuld]
n.
开始, 开端, 极限

If a man sink discouraged upon the threshold of a life of fierce competition he might as well be a dead man.
身为男子汉而在投身于人生激烈的竞争之际意气消沉的话，宁可当个死人算了。
Scientists are now on the threshold of a better understanding of how the human brains work.
科学家们现在对人脑的功能开始有更进一步的了解。
Scientists are now on the threshold of an important discovery.
科学家们很快就会有一项重大发现。
The court is not legally justified in stopping at the threshold of the case.
一开始就使案件停止不前，法院这样做是完全不合法的。