the five treaty ports forced on Qing China by the 1842 treaty of Nanjing 南京條約|南京条约 that concluded the First Opium War, namely: Guangzhou 廣州|广州, Fuzhou 福州, Ningbo 寧波|宁波, Xiamen or Amoy 廈門|厦门 and Shanghai 上海
1 lit. count by fives and tens (idiom); to narrate systematically and in full detail
一窍不通
yī qiào bù tōng
1 lit. doesn't (even) enter a single aperture (of one's head)
2 I don't understand a word (idiom)
3 it's all Greek to me
一通百通
yī tōng bǎi tōng
1 grasp this fundamental point and all the rest will follow (idiom)
三五成群
sān wǔ chéng qún
1 in groups of three or four (idiom)
三令五申
sān lìng wǔ shēn
1 to order again and again (idiom)
三番五次
sān fān wǔ cì
1 over and over again (idiom)
三纲五常
sān gāng wǔ cháng
1 three principles and five virtues (idiom)
2 the three rules (ruler guides subject, father guides son and husband guides wife) and five constant virtues of Confucianism (benevolence 仁, righteousness 義|义, propriety 禮|礼, wisdom 智 and fidelity 信)
三缄其口
sān jiān qí kǒu
1 (idiom) reluctant to speak about it
2 tight-lipped
不蒸馒头争口气
bù zhēng mán tou zhēng kǒu qì
1 not to be crushed (idiom)
2 to be determined to have one's revenge
串通一气
chuàn tōng yī qì
1 to act in collusion (idiom)
互通有无
hù tōng yǒu wú
1 mutual exchange of assistance (idiom)
2 to benefit from each other's strengths and make up each other's shortfalls
3 to reciprocate with material assistance
4 scratch each other's back
五十步笑百步
wǔ shí bù xiào bǎi bù
1 the one who has retreated 50 steps laughs at the one who has retreated 100 steps (idiom)
2 the pot calls the kettle black
五味俱全
wǔ wèi jù quán
1 a complete gamut of all five flavors (idiom); every flavor under the sun
五味杂陈
wǔ wèi zá chén
1 with complex feelings (idiom)
五彩缤纷
wǔ cǎi bīn fēn
1 all the colors in profusion (idiom); a garish display
五百年前是一家
wǔ bǎi nián qián shì yī jiā
1 five hundred years ago we were the same family (idiom) (said of persons with the same surname)
五色缤纷
wǔ sè bīn fēn
1 all the colors in profusion (idiom); a garish display
五体投地
wǔ tǐ tóu dì
1 to prostrate oneself in admiration (idiom); to adulate sb
五鬼闹判
wǔ guǐ nào pàn
1 Five ghosts mock the judge, or Five ghosts resist judgment (title of folk opera, idiom); important personage mobbed by a crowd of ne'er-do-wells
交口称誉
jiāo kǒu chēng yù
1 voices unanimous in praise (idiom); with an extensive public reputation