Instantly appealing and easy to remember, especially a tune or slogan.

立刻吸引人、容易记住，尤指口号或旋律。

Likely to trap or trick someone; designed to catch people out.

容易设套使人上当；故意让人中招的。

Irregular or intermittent; occurring in brief snatches; changeable.

断断续续的；间歇出现的；多变的。

Contagious; easily passed from one person to another.

具有传染性的；容易在人与人之间传播的。