unknown uncertain not clear be not clear do not understand
It was clear Cohen didn´t understand what Millard was driving at.
看得出科恩并不明白米勒德想说什么。
—— 柯林斯例句A surprising number of ailments are caused by unsuspected environmental factors.
有大量疾病是由不明环境因素造成的。
—— 柯林斯例句The author´s style suggests a certain ambiguity in his moral view.
该作家的风格表明其道德观有点暧昧不明。
—— 柯林斯例句He was shot this morning by unidentified intruders at his house.
他今天早上在家中被身份不明的闯入者射杀。
—— 柯林斯例句Shortly before Christmas, he was mysteriously taken ill.
圣诞节前不久,他突然不明原因地病倒了。
—— 柯林斯例句