| 释义 |
a hard/tough nut to crack
idiom
a problem that is very difficult to solve or a person who is very difficult to understand棘手的问题；难以理喻的怪人
SMART Vocabulary: related words and phrases
Difficult things and people
a (heavy) cross to bearidiom
albatross
ball and chain
bane
be dead meatidiom
be in the clearidiom
bump
chill
equation
hiccup
hindrance
hot potato
impediment
incubus
nut
snag
stumbling block
teaser
teething troubles
thorn in your flesh/sideidiom
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