(1)甲高い音を出す
(2)変調で歌う
(3)多すぎる情報を交換し合うことなく、社会的に話す
(4)鳥のような、甲高い音を出す
(5)talk socially without exchanging too much information; "the men were sitting in the cafe and shooting the breeze"
さらに詳しく
