The last one was added in 1959 when Hawaii became the fiftieth state of the United States of America.

最后一颗星是在1959年夏威夷成为美国第五十个州时加上去的。

youdao

The last one was added in 1959 when Hawaii became the fiftieth state of the United States of America.

最后一颗星是在1959年夏威夷成为美国第五十个州时加上去的。

youdao