difficult problem; tough question; challenge
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
difficult problem; tough question; hard nut to crack
Refers to problems that require significant effort, intelligence, or resources to solve. Can be used for academic questions, practical challenges, or complex situations.
Lǎo老
shī师
gěi给
wǒ我
men们
chū出
le了
yī一
dào道
shù数
xué学
nán难
tí题
。
The teacher gave us a difficult math problem to solve.
Rú如
hé何
jiě解
jué决
huán环
jìng境
wū污
rǎn染
shì是
yī一
gè个
shì世
jiè界
xìng性
nán难
tí题
。
How to solve environmental pollution is a global challenge.
Show 2 more examplesShow fewer examples
Zài再
dà大
de的
nán难
tí题
yě也
nán难
bù不
dǎo倒
wǒ我
men们
de的
kē科
yán研
tuán团
duì队
。
No matter how big the challenge, it cannot defeat our research team.
Zhè这
dào道
lì历
shǐ史
nán难
tí题
kùn困
rǎo扰
le了
xué学
zhě者
men们
jǐ几
shí十
nián年
。
This difficult historical question has puzzled scholars for decades.