在1918年再版之前，这本书一直非常罕见。It remained an exceptionally rare book until it was reprinted in 1918.在这种经济环境下，新想法极为罕见。In this economic climate new ideas were few and far between.体貌完美的人极为罕见。Physical perfection in a human being is e...
The stone stairway was covered with lichen.那石级长满了地衣.Lichen is a form in which green or bluegreen algae and a fungus live together symbiotically.地衣是一种绿藻或蓝藻与一种真菌共生的形式.The case was diagnosed as lichen sclerosus et atrophicu...
这图形是一种作为能量传导的迂回的媒介.The figure is a circuitous conduit for the transmission of energies.本实用新型是涉及电声传导的一种发声器械.The utility model relates to the sound production instrument about electroacoustic conduction.空气是声波传导的媒介.Air is t...