问一个关于英语中序数词的问题哈,

问题描述:

问一个关于英语中序数词的问题哈,
this is their the second time to beijing?还是this is their second time to beijing?
哪个形式对?
序数词加不加the应该分别在什么时间用?

this is their second time to beijing?对的
序数词单独使用时要加the
英语有时候靠语感吧~