三缄其口形容说话极其谨慎、不轻易开口。英speak with caution; absolute refusal to talk with one's mouth sealed more than once;[查看详情]

闪烁其词形容说话吞吞吐吐、躲躲闪闪不肯说出真相和要害。英speak evasively;[查看详情]

不可告人不能告诉别人多用以形容邪恶的目的等。英secret act; ulterior; motive that cannot be admitted;[查看详情]

守口如瓶闭口不说，像瓶口塞紧了一样。形容说话谨慎或严守秘密。例防意如城，守口如瓶。英tightlipped; reticent; do not breathe a single word;[查看详情]

高深莫测使人很不容易猜透。例他装出一副傲慢的、高深莫测的姿态借以逃脱怀疑。英be quite beyond one's depth; enigmatic;[查看详情]

神秘莫测不可理解的。英mystery;[查看详情]

半吞半吐话刚说出口又缩回去。例王教授把他们送到门口便站住半吞半吐地对他们说。——巴金《知识阶级》英partly conceal and partly confess; speak with reserve (restraint); to hum and haw;[查看详情]