Cách sử dụng
'Derail' is a verb that means to cause something to go off course or off track. This word is usually used when describing something that was supposed to go a certain way, but suddenly went in a different direction or failed. For example, a train can derail when it goes off the tracks, or a conversation can derail when it gets off topic and goes in a completely different direction. In general, 'derail' is used when something goes wrong and doesn't go according to plan.