bad apple 坏影响
Informal way of saying "bad influence".
-Tim and Jack are really bad apples for you.

Gross
1. Something disgusting and inducing vomit 恶心的
2. Something or someone lazy or incorrigible 无可救药的
3. stupid 痴呆傻
4. Money made over a period of time 最高票房

1. His vomiting was so gross, it made me vomit.
2. The worker had gross incompetence. （严重失职）
3. The man was gross and oafish. 笨手笨脚的
4. Titanic is the highest grossing film of all time, somehow