Drug addicts can never sit quietly in one place: after 10 or 20 minutes they will get up and go out, sometimes saying they are going to the toilet or some such excuse, because they need another fix.
吸毒者通常坐不住的，不到一、二十分鐘，就要離開，有時以上廁所或其他理由為藉口等，因為毒性發作了。