unmarked
adj. 无记号的；未被注意的
近义词：spotless，unblemished，pristine，immaculate，perfect，withoutascratch，intact，undamaged，overlooked，unnoted，marked，
英英释义
Adjective
- not having an identifying mark;
"unmarked cards" "an unmarked police car"
- not taken into account;
"his retirement was not allowed to go unmarked"
例句
用作形容词(adj.)
- She handed him an unmarked card.她递给他一张无标志的卡片。
- A few cops prowled in marked and unmarked cars.几名警察乘坐有标志和无标志的汽车在暗中巡查。
- his retirement was not allowed to go unmarked.他的退休是不容忽略的。