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prone
go to war
nutshell
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conglomerate
unexpectedly
filament
tree
bubbling
happen
go bad
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act up
act up
/ækt ʌp/
verb
Make itself felt as a recurring pain
(
act up
)
make itself felt as a recurring pain
My arthritis is acting up again
My arthritis is acting up again
Misbehave badly; act in a silly or improper way
(
act up
,
carry on
)
misbehave badly; act in a silly or improper way
The children acted up when they were not bored
The children acted up when they were not bored
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