Ancient Shipwrecks Found, But No Missing MH370

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jetliner – n. a large jet airplane used for carrying passengers

treacherous – adj. very dangerous and difficult to deal with

debris – n. the pieces that are left after something has been destroyed

crevasses – n. deep, narrow openings or cracks in an area of thick ice or rock

cable – n. a thick, strong rope made of wires that are twisted together

sonar – n. a device used for finding things that are underwater by using sound waves