. . "abdominal breathing"@en-us . . . "breathing in which most of the respiratory effort is done by the abdominal muscles; \"abdominal breathing is practiced by singers\""@en-us . "0.25"^^ . "abdominal breathing"^^ . "0"^^ . . "100534336"@en-us . . . . "100782733"@en-us . "100833296"^^ . "00833296-n"^^ . .