Các câu ví dụ cho từ trace

1. With help from new friends in Vietnam, Alma sent her profile to a television program that helps trace relatives, but a month passed without any response.

2. Businesses across the country are also re-implementing safety regulations to protect their employees after Vietnam recorded four new cases of Covid-19 with no trace of transmission, ending more than three months without infecting the community.

3. The agony of not knowing who her biological parents were persuaded her to try and trace her true roots.