问1910，1909用英语怎么读

you can read as "nineteen one O" and "nineteen O nine".

"nineteen one O" for 1910 is very colloquial and informal, you can also say "nineteen ten".

nineteen ten 和nineteen and nine
或者nineteen O(读作字母O)nine

nineteen ten 第一个对着呢
但第二个你说的不对
nineteen O nine 其中第二个地O是欧的欧