Once, for instance, to our extreme wonder, he piped up to a different air, a kind of country love-song that he must have learned in his youth before he had begun to follow the sea.

比方说有一次，他使我们万分惊奇地突然哼出了一个不同的调子，一首乡村的情歌，那肯定是在他出海之前的年轻时候学会的。

youdao

The first time the group of researchers met, he piped up with research showing that mutations in genes related to JAK2 could also cause the disease.

FORBES: Patient Power

He said they had to put up with piped Christmas music and that this amounted to abuse in itself.

BBC: Northern Ireland Assembly