我听说有一群人沿着老艾里运河拖船路骑行的故事。

I heard a story about a group who had ridden along the old Erie Canal tow path.

youdao

我听说有一个母亲，她的孩子怕鬼。

I heard of a Mother who had a kid who was frightened about ghosts.

youdao

我听说有一个新的滑雪的地方很不错。

I heard the new ski area is great.

youdao

For some of you that haven't I'll just say that it's a protein, it's 238 amino acids, which means that it's about 1,000, actually more than 1,000 atoms in size, and this protein is fluorescent.

对于那些没听说过的人,我要说它是一种蛋白质，它有238个氨基酸，也就意味着它有约1000个，实际上是超过1000个原子，这种蛋白质是有萤光的。

麻省理工公开课 - 化学原理课程节选