劍橋詞典 g noun (FORCE) [ 可數(shù)名詞：有復(fù)數(shù)形式的名詞 ] physics specialized plural ga unit of measurement of the acceleration (= rate of change of speed ) of an object caused by gravity 重力加速度的符號 g noun (MASS) (also gm) written abbreviation for gram （質(zhì)量單位）克（gram的縮寫） 返回 g