He never gave up and always kept going.
Meaning: This means that the boy was very determined and never stopped trying, even when things were difficult.
Choice of Words: Never means not ever or at no time. Gave up means to stop trying or doing something. Always means at all times or without exception. Kept going means to continue moving or progressing. When you put them together, "never gave up and always kept going" means that the boy did not stop trying or doing something and continued moving or progressing at all times or without exception.
Alternative Expressions
Related Expressions