man of his word
US /mæn əv hɪz wɜrd/
UK /mæn əv hɪz wɜrd/

1.
信守诺言的人, 言而有信的人
a person who always keeps their promises and can be trusted
:
•
You can rely on him; he's a true man of his word.
你可以信任他;他是一个真正的信守诺言的人。
•
My father taught me to always be a man of my word.
我父亲教导我永远要做一个信守诺言的人。