Africans keep a small stick in their mouth to chew or scrub their teeth all day.
非洲人整天把一根小木棍放在嘴里咀嚼或刷洗他们的牙齿。
2
Chew a half stick of gum at a time.
一次只嚼半片口香糖。
3
On the other hand, in older people with dentures, it is often very hard for them to chew properly, so that too large a chunk can easily get down into the throat and stick there.