STAND-BY

Standby may refer to:Standby (telecommunications), term in telecommunicationsStandby (air travel), a list in which passengers may request to be placed on to request an earlier or more convenient flight.Standby (theater), an actor or performer who will appear in a particular role if the regular performer is not present – similar to an  understudy. However, unlike understudies, standbys will only perform when they are needed to cover a role, and do not regularly appear in a show.Standby (band), a hard rock band from Sweden.Standby (electricity) or standby mode - a mode in which electronic appliances are turned off but under power and ready to activate on commandStandby (computers), a mode an ACPI-compliant computer can be in. It is more formally called ACPI S3.Standby, the term NASA uses in air-to-ground radio communications for expressing "please wait"
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(n.)
One who, or that which, stands by one in need; something upon which one relies for constant use or in an emergency.
  

stand-by /'stændbai/
danh từ người có thể trông cậy được; vật có thể trông mong vào; chỗ dựa máy dự phòng
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