Abdest
abbr. all but dissertation [美国英语](已修毕课程通过考试, 但尚欠论文的)准博士, 已通过博士学位的各项考核却未写博士论文者；除论文外一切资格齐备, [亦作 A.B.D.]
🗣️ 情景例句
It probably means we can't stay.
看来我们不能待在这儿了。
Good counsel does no harm.
忠言无害。
may have left an automatic messenger behind to await the possible awakening of an advanced civilization.
很可能会在离开太阳系时留下自动化信息装置，等待先进文明的觉醒。