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The air we breathe consists of oxygen and nitrogen.
The baby almost choked on a piece of candy.
Many old people choke to death while eating mochi.
He suffocated, smothered in smoke.
Nitrous oxide stopped being used as an anaesthetic a long time ago.
With small children, there's a risk of drowning even with water as low as 5 centimeters deep.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.