第一 diˋ yiˉ

(First, Number one)

Number one, First, The first

一週 yiˋ zhouˉ

(One week, Week)

One week, A week

第

In Sequence, Number, Prefix

Number, Prefix for numbers, In Sequence

一

A, An, As soon as, Once, One, Single, The

One, 1, Single, A, An, Once, As soon as, The

週

Anniversary, Day of, Duration, Period Of Time, Week

Week, Day of the week, Period Of Time, Duration, Anniversary