妻子离开后，他的人生中出现了一大片空洞。

After his wife left, there was a gaping hole in his life.

《牛津词典》

如今，出现了中等技能水平的人才短缺问题。

Now shortages are appearing at the mid-skill levels.

youdao

不同的人在我的生命中出现和消失。

People seem to float in and out of my life.

《牛津词典》

So, more data to come, so this is a clip some of you might have seen in section already.

随着更多数据的出现，就会形成一个标签,有些人可能已在相应章节中看到过了。

哈佛公开课 - 计算机科学课程节选

The inhabitants seem to have been peasant farmers, like other Canaanites. One interesting difference is the absence of any pig bones, which is kind of interesting.

这些居住者们好像曾是农民，就像其他迦南人一样，一个有趣的差异是,没有猪骨头的出现，这很有意思。

耶鲁公开课 - 旧约导论课程节选

Why is cancer one of the leading killers in the U. S. now but wasn't even on the charts in 1665?

为什么癌症现在是美国人的头号杀手,却甚至没有在一六六五年的名单中出现

耶鲁公开课 - 生物医学工程探索课程节选