This construction is the most critical, the most difficult, requires the most construction techniques, and the last construction for the “electricity-related" infrastructure of the Beijing-Shenyang high-speed railway to be introduced into the Shenyang hub based on the original plan for opening.
Mandarin
本书系统地论述了在加油站油品日趋同质化的今天，服务成了竞争取胜的关键。
本書系統地論述了在加油站油品日趨同質化的今天，服務成了競爭取勝的關鍵。
běn shū xì tǒng de lùn shù le zài jiā yóu zhàn yóu pǐn rì qū tóng zhì huà de jīn tiān ， fú wù chéng le jìng zhēng qǔ shèng de guān jiàn ．
This book systematically discusses that today, when the quality of oil products gradually homogenizes across gas stations, service has become the key to winning competition.
Mandarin
一个关键细节
一個關鍵細節
yī ge guān jiàn xì jié
a crucial detail
Mandarin
他虽然看起来大大咧咧，实际上关键时候还挺靠谱，这不，他第一个就发现了我脸色的不对劲，关心起来。
他雖然看起來大大咧咧，實際上關鍵時候還挺靠譜，這不，他第一個就發現了我臉色的不對勁，關心起來。
tā suī rán kàn qǐ lái dà dà liē liē ， shí jì shàng guān jiàn shí hòu hái tǐng kào pǔ ， zhè bù ， tā dì yī ge jiù fā xiàn le wǒ liǎn sè de bù duì jìn ， guān xīn qǐ lái ．
Although he seems casual in manner, he is actually quite reliable during critical moments. [I didn't mean to bring this up but here is an evidence of that]; Look, he was the first to notice that something was wrong from my appearance, and asked about it.