调研
diào yán
to investigate and research, research, investigation
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掉进池塘
diào jìn chí táng
Fall into the pond
掉进河里
diào jìn hé lǐ
Fall into the river
犯法很严重。
fàn fǎ hěn yán zhòng。
The offense is serious.
他的伤势严重。
tā de shāng shì yán zhòng。
His injuries are serious.
她沿着路跑步。
tā yán zhe lù pǎo bù。
She runs along the road.
渔夫在海边钓鱼。
yú fū zài hǎi biān diào yú。
Fisherman fishing on the seashore.
我正在练习声调
wǒ zhèng zài liàn xí shēng diào
I am practicing my intonation.
请把旧报纸扔掉
qǐng bǎ jiù bào zhǐ rēng diào
Please throw away the old newspapers
这个问题很严重。
zhè ge wèn tí hěn yán zhòng。
This problem is serious.
服务员，盐和胡椒。
fú wù yuán， yán hé hú jiāo。
Waiter, salt and pepper.