Kaj Chieh Shih, uni_扶苏, Shian: Thanks for all your comments; they’re really helpful! Yeah, I wonder why Peru was transcribed as 秘鲁 in the first place — why not 比鲁 or 毕露 or something? I I wonder who invents these transliterations anyhow. And doesn’t 结果 have two different meanings depending on the tone (jiéguǒ - result or jiēguǒ - bear fruit)? Hopefully, there aren't too many of these tricky words.

下载 xiàzài√ xiàzǎi（used always）

纤维 xiānwéi√ qiānwéi

业绩 yèjì√ yèjī

因为 yīnwèi√ yīnwéi（used always）

油炸 yóuzhá√ yóuzhà

脂肪 zhīfáng√ zhǐfáng

质量 zhìliàng√ zhǐliàng

主意 zhǔyi zhúyi√

结束 jiéshù√ jiésù

角色 juésè√ jiǎosè

尽管 jǐnguǎn√ jìnguǎn（used always）

尽量 jǐnliàng jìnliàng（two pronunciation with different meaning）

勉强 miǎnqiǎng√ miǎnqiáng

昵称 nìchēng√ níchēng

文件夹 wénjiànjiā√ wénjiànjiá（used always）

出血 chūxiě√, chūxuè chūxuě（血 is a heteronym)

档案 dàng'àn√ dǎng'àn

蛋挞 dàntà dàntǎ√

符合 fúhé√ fǔhé(used always)

复杂 fùzá√ fǔzá(used always)

狗狗 gǒugou√ gǒugóu

骨头 gǔtou gútou(it's depend on the conversation）

好莱坞 Hǎoláiwù Hǎoláiwū√

烘焙 hōngbèi hōngpéi√

馄饨 húntun√ húndùn

结果 jiéguǒ√ jiēguǒ

办公室 bàngōngshì √ bàngōngshǐ

曝光 bàoguāng√ pùguāng

秘鲁 Bìlǔ Mìlǔ√

比较 bǐjiào√ bǐjiǎo

惩罚 chéngfá√ chěngfá（people always used in this）

乘务员 chéngwùyuán√ chèngwùyuán

成绩 chéngjì√ chéngjī