Ratfish
n. [鱼] 银鲛,兔银鲛
🗣️ 情景例句
He did it in no time.
他马上做了那件事。
Why didn't you call me?
为什么你不打电话给我？
Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned.
有时，保密竟达到了这样的程度，即连研究工作的整个性质都不准提及。