quán tính

== Vietnamese == === Etymology === Sino-Vietnamese word from 慣性. === Pronunciation === (Hà Nội) IPA(key): [kwaːn˧˦ tïŋ˧˦] (Huế) IPA(key): [kwaːŋ˦˧˥ tɨn˦˧˥] (Saigon) IPA(key): [waːŋ˦˥ tɨn˦˥] === Noun === quán tính matter of course làm theo quán tính ― to make a move as a matter of course inertia