Although most people think they made the right choice, only 66 percent of those who are married said they believed in soul mates, the idea that two people are destined to be together.

尽管多数美国人相信自己选对了人，但仅有66%的已婚人士相信两人在一起是注定的缘份。

youdao

Although my family only has two people, we live happily.

虽然我的家庭只有两个人，但是我们都过得很幸福。

youdao

Also, alternative should imply that there are only two possibilities, while there can be any number of options, although many people use alternative where there are more than two.

另外，alternative应当意味着总共只有两种可能性，而option可多可少，不过很多人在有两种以上可能性时也使用alternative。

youdao

Although only a minority of people - between one and two in every 10 - has symptoms, advisers say extra measures to control the disease may be needed.

BBC: Infection risk posed by cats revealed