The Vostok 1 orbited the earth once.(就once部分提问)

问题描述:

The Vostok 1 orbited the earth once.(就once部分提问)

When did the Vostok 1 orbit the earth?

How often
频度副词一概用这个
when did The Vostok 1 orbit the earth

How many times

when did The Vostok 1 orbit the earth