rap on (something)

To strike something with one or more quick, light blows, as when getting someone's attention; to knock or tap at something swiftly and lightly. I thought I heard someone rapping on my window in the middle of the night, so I was wide awake with fear until morning! The wind was causing a tree branch to rap on the door in a most unsettling manner.

词组	rap on (something)
释义	rap on (something) rap on (something) To strike something with one or more quick, light blows, as when getting someone's attention; to knock or tap at something swiftly and lightly. I thought I heard someone rapping on my window in the middle of the night, so I was wide awake with fear until morning! The wind was causing a tree branch to rap on the door in a most unsettling manner. See also: on, rap Farlex Dictionary of Idioms. See also: a slew of (something) (one) could use (something) (I) wouldn't (do something) if I were you (one) never would have guessed (one) doesn't give a rip (about something) all right (one) doesn't give a hoot (about something) a/the feel of (something) (one) won't hear of (something) a straw will show which way the wind blows
随便看	proclaim something from the housetops proclaim (something) from the housetop(s) proclaim (something) from the housetops proclaim (something) from the rooftops procrastination is the thief of time Procrustean Procrustean bed Procrustean solution procure procure (something) for procure (something) from (someone) prod prod at prod at (someone or something) prodigal prodigal son prod into prod into (someone or something) produce produce an attack produce an attack (of some illness) produce for produce from produce (something) from (something) production