zhuìjī
“坠” v. fall; drop(Source: 《新世纪汉英大词典》)
“机” n. plane; aircraft(Source: 《新世纪汉英大词典》)
“坠机” v. (of a plane) crash (down) (Source: 《新世纪汉英大词典》)
新闻例句
The Chinese Embassy in Laos has confirmed that two Chinese citizens died in the plane crash.