🗣️ 情景例句
... Oh, oh, I see.... Oh ... certainly.
……嗯 嗯 我知道了。……嗯……一定。
Beard the lion in his den.
老虎头上捉虱；太岁头上动土。
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。