at the first time和at first time 的区别？

Question

我们承诺：把第一次和每一次都做到最好！
怎么说?
1.We promise: do best at the first and every time
2.We promise: do best at the first and every time
还有，do前用不用加to

Answer 1

do前不加to,这里只指祈使句,所以直接以动词开头.
at the first time 指在第一次
如一个人打算分3次做一件事情，at the first time, he made a ..., but failed. at the second time, ..., failed again.
要加冠词the，first是序数词，应该要加的．

Answer 2

要特别强调顺序的话才用THE，没有顺序，一般就at first time就可以了
我觉得应该翻译成：wo promise to do best at first time..用不定式比较好

Answer 3

要加the,在序数词前都要加the,

而且更正一下错误
promise + doing sth.

请参考.