We did not receive any news during his long absence.
我们在他长期离开的时候没有得到一点消息。
《牛津词典》
2
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft-bodied and simply did not fossilize.
关于在这一亿年的重要时期中没有化石，有一种解释是，早期的动物是软体动物，根本不会变成化石。
3
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft bodied and simply did not fossilize.