Give two kinds of insect which like to group together.
举一反三
- “Group” vs. “Mob”: A Mob has a... which are together.
- A ( ) is a place or situation in which people or ideas of different kinds gradually get mixed together.
- Group” vs. “Mob”: A Mob has a negative connotation of an unruly group, often with a violent purpose, whereas Group is neutral, and just means a number of people or things which are together.
- 中国大学MOOC: ___________ is a business activity in which two or more companies have invested together.
- The texture of insect wings is only membranous, leathery and ( ) three kinds