knock, tap, rap, pat

名詞 tap:

1. the sound made by a gentle blow
   同義詞：pat, rap
2. a faucet for drawing water from a pipe or cask
   同義詞：water faucet, water tap, hydrant
3. a gentle blow
   同義詞：rap, strike
4. a small metal plate that attaches to the toe or heel of a shoe (as in tap dancing)
5. a tool for cutting female (internal) screw threads
6. a plug for a bunghole in a cask
   同義詞：spigot
7. the act of tapping a telephone or telegraph line to get information
   同義詞：wiretap
8. a light touch or stroke
   同義詞：pat, dab

動詞 tap:

1. cut a female screw thread with a tap
2. draw from or dip into to get something
3. strike lightly
   同義詞：tip
4. draw from; make good use of
   同義詞：exploit
5. tap a telephone or telegraph wire to get information
   同義詞：wiretap, intercept, bug
6. furnish with a tap or spout, so as to be able to draw liquid from it
7. make light, repeated taps on a surface
   同義詞：rap, knock, pink
8. walk with a tapping sound
9. dance and make rhythmic clicking sounds by means of metal plates nailed to the sole of the dance shoes
   同義詞：tapdance
10. draw (liquor) from a tap
11. pierce in order to draw a liquid from
12. make a solicitation or entreaty for something; request urgently or persistently
    同義詞：solicit, beg

1. That girl tapped her fingers on the desk impatiently.
   那個女孩不耐煩地用手指輕扣桌面。
2. He cleaned his hands in the cold water from the tap.
   他用自來水龍頭流出的涼水把手洗干凈。
3. My phone is being tapped.
   有人在竊聽我的電話。