| 釋義 |
trace1 /treis; tres/ n 1 [U, C] mark, sign, etc showing that sb or sth has been present, that sth has existed or happened: 蹤跡; 痕跡; 形跡： ~s of an ancient civilization. 古代板明的潮氐 The police were unable to find any ~ of the thief. 警察找不出那竊賊的任何蹤跡。 We've lost all ~ of them, don't know where they are. 我們不知道他們現(xiàn)在何處。 2 [C] very small amount: 微量; 少許： The postmortem showed of arsenic in the intestines. 驗尸顯示腸內(nèi)留有微量的砒霜。 '~ element, element of which a ~ is necessary for the development of animal or plant life and without which growth is poor (eg manganese in the soil, for wheat and oats). 微量元素(此種元素之少量為動植物生長所必須, 如栽種小麥及燕麥時土壞中之錄)。 |