| 释义 |
undetectable
adjective
uk /ˌʌn.dɪˈtek.tə.bəl/ us /ˌʌn.dɪˈtek.tə.bəl/
impossible to notice or discover:
The moons of Jupiter are undetectable by the naked eye.
The medication he takes every day has reduced the amount of virus in his bloodstream to undetectable levels.
The effect is so small as to be almost undetectable.
Several athletes confessed to using undetectable performance-enhancing drugs.
A 5 percent voltage reduction is virtually undetectable by customers.
Radio astronomy is the study of radio waves emitted by objects in space that may be otherwise undetectable.
SMART Vocabulary: related words and phrases
Finding and discovering
ascertain
break (fresh/new) groundidiom
breakthrough
bring something to lightidiom
catch someone red-handedidiom
flush someone/something out
fossick
found
geocache
geocaching
homing
pinpoint
plumb
rake something out
red-handed
rediscover
rediscovery
refind
sniff
suss
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