forewarn

vt

• ① 预先警告
  • Forewarned is forearmed.【谚】预得警告即是有备无患。
  • I have forewarned him of the danger.我已预先警告他有危险。
  • We should forewarn them that it may be dangerous to go there.我们应该预先警告他们说,到那里去可能有危险。