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历史：
substitute
(once / 220 pages)

Something or someone that takes the place of another is said to be a substitute. You may be sent into a game as a substitute for an injured player, or you might substitute chocolate chips for blueberries in a pancake recipe.
Substitute can be used as an adjective to describe something or someone that takes the place of another. Teenagers are notoriously hard on substitute teachers, sometimes giving them fake names or wrong information about classroom work. Substitute can also be used as a verb. So if you are asked to substitute for a teacher, you probably shouldn't believe everything the students tell you!
WORD FAMILY
substitutable: substitutability/substitute: substitutable, substituted, substitutes, substituting, substitution/substitution: substitutions
USAGE EXAMPLES
“Oh,” said my mother, “there is no true substitute for a Classical education.”
Literature(Jul 10, 2014)
I look around the room for a substitute.
Literature(Jul 10, 2014)
Regular radishes may be substituted for breakfast radishes; sweet onions, such as Maui, may be substituted for spring onions.
Los Angeles Times(Jul 10, 2014)
For all the bells and whistles of the Pocket Edition there is no substitute for those tactile Vita controls.
Forbes(Jul 10, 2014)
If all spots aren’t filled, Dorsey says students start the school year off with a retired certified teacher or a substitute teacher.
Washington Times(Jul 10, 2014)
1
na person or thing that takes or can take the place of another
Synonyms:
replacement
2
nsomeone who takes the place of another (as when things get dangerous or difficult)
Synonyms:
backup, backup man, fill-in, relief, reliever, stand-in
3
nan athlete who plays only when a starter on the team is replaced
Synonyms:
reserve, second-stringer
4
vput in the place of another; switch seemingly equivalent items
substitute regular milk with fat-free milk
Synonyms:
exchange, interchange, replace
5
vbe a substitute
The young teacher had to substitute for the sick colleague
The skim milk substitutes for cream--we are on a strict diet
Synonyms:
fill in, stand in, sub
6
vact as a substitute
Synonyms:
deputise, deputize, step in
7
adjserving or used in place of another
Synonyms:
alternate, alternative
secondary
being of second rank or importance or value; not direct or immediate
8
adjartificial and inferior
substitute coffee
Synonyms:
ersatz
artificial, unreal
contrived by art rather than nature
9
adjcapable of substituting in any of several positions on a team
Synonyms:
utility
secondary
being of second rank or importance or value; not direct or immediate

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