The Vietnamese word "bào thai" translates to "foetus" in English. It refers to the developing young organism inside the womb of a pregnant woman.
In more advanced contexts, "bào thai" can be used in discussions about prenatal health, medical screenings, or developmental stages of pregnancy. For example: - "Các bác sĩ sẽ kiểm tra bào thai để đảm bảo sức khỏe của em bé." (Doctors will check the foetus to ensure the baby's health.)