磕 (kē): to tap, to knock (against sth hard), to knock (mud from boots, ashes from a pipe etc)

磕字在不同的语境中有不同的用法。

kē zì zài bù tóng de yǔ jìng zhōng yǒu bù tóng de yòng fǎ .

The word "knock" has different usages in different contexts.

雷军透露，SoC 和基带双线突破的背后，是小米死磕底层技术的决心。

léi jūn tòu lù , S o C hé jī dài shuāng xiàn tū pò de bèi hòu , shì xiǎo mǐ sǐ kē de céng jì shù de jué xīn .

Lei Jun revealed that behind Xiaomi’s dual breakthroughs in SoC and baseband technology lies the company’s determination to master core technologies.

同时，鞋子抓脚不稳，人们会下意识蜷缩脚趾抓鞋，长期可造成脚趾挛缩、指甲磕碰损伤。

tóng shí , xié zǐ zhuā jiǎo bù wěn , rén men huì xià yì shí 蜷 suō jiǎo zhǐ zhuā xié , cháng qī kě zào chéng jiǎo zhǐ 挛 suō , zhǐ jiǎ kē pèng sǔn shāng .

At the same time, if shoes don’t fit securely, people will subconsciously curl their toes to grip the shoes, which over time can lead to toe contractures and injuries from bumping the toenails.

全新亮相的琴·葛蕾，倾情演绎互相救赎的戏码，让众多观众磕上邪门 CP。

quán xīn liàng xiāng de qín Gě lěi , qīng qíng yǎn yì hù xiāng jiù shú de xì mǎ , ràng zhòng duō guàn zhòng kē shàng xié mén C P .

The newly introduced Jean Grey delivers a heartfelt performance in a story of mutual redemption, causing many viewers to become obsessed with this unconventional couple.

充当临时防水敷料 雨天出行若不慎磕碰受伤，混杂细菌的雨水极易污染伤口，进而引发感染。

chōng dāng lín shí fáng shuǐ fū liào yǔ tiān chū háng ruò bù shèn kē pèng shòu shāng , hùn zá xì jūn de yǔ shuǐ jí yì wū rǎn shāng kǒu , jìn ér yǐn fā gǎn rǎn .

As a temporary waterproof dressing: If you accidentally bump into something and get injured while out in the rain, rainwater contaminated with bacteria can easily contaminate the wound, leading to infection.

俄罗斯女婿给丈母娘磕头拜年:不是必须做,是我所能表..

é luó sī nǚ xù gěi zhàng mǔ niáng kē tóu bài nián : bù shì bì xū zuò , shì wǒ suǒ néng biǎo . .

The Russian son-in-law kowtowed to his mother-in-law for the New Year: It's not something I have to do, it's what I can do:

他磕碎了下巴，掉了几颗牙。

Tā kē suì le xiàba, diào le jǐ kē yá.

He got a broken jaw and lost some teeth.