如何使用 "altruist" 造句

1. But as karlan warns , not everyone is an altruist .
但卡兰警告称,不是所有人都是利他主义者。
2. Gunderson and colleagues studied 940 women catching chapter in a study of prenatal and postnatal upbeat at altruist medical school in boston .
甘德森及其同事对940名女性进行了研究,这些女性都参加过波士顿哈佛医学院的产前及产后健康研究。