He persuasively argued that such an ice-free corridor did not exist until much later, when the continental ice began its final retreat.

他很有说服力地指出，直到很久以后，当大陆上的冰开始最后消退时，才有了这样一条没有冰的走廊。

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Typically, the preferred sleep cycle is delayed in adolescents, which leads to many students not feeling sleepy until much later in the evenings.

通常，青少年的睡眠周期会延迟，这导致许多学生直到晚上很晚才感到困倦。

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The Gregorian calendar was not widely adopted across the world until much later.

格里高利历法(公历)直到很久以后都未被世界采用。

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But Renault cars will not come until much later.

FORBES: Gambatte!

It also could have meant that some women did not receive treatment until much later than would normally be expected.

BBC: Doctor 'kept cancer women waiting'

False-negative results, which are rarer, also present a quandary for women and doctors who may not find out until much later that a fetus has an abnormality.

WSJ: New Questions on Cutting-Edge Prenatal Tests