Ucav
abbr. uninhabited combat air vehicle 非传统战斗航空器，非传统战斗机
🗣️ 情景例句
sleep over Friday and Saturday night
星期五和星期六晚上在那儿过夜
Mr. Jones is a renowned international authority on the problem of overpopulation in developing countries.
琼斯先生在发展中国家人口过剩问题方面是声誉卓著的国际权威。
The doctors have not yet decided how the woman died.
医生们至今还未确定这位妇女的死因。