不祥的先兆 ill omen; 成功的先兆 an omen of success; 地震的先兆 indications of an impending earthquake; 战争的先兆 portents of war; 那被认为是一种不幸的先兆。 it is said to be an omen of misfortune. 乌云是下雨的明显先兆。 black clouds are an unmistakable sign of coming rain
It is said to be an omen of misfortune . 那被认为是一种不幸的先兆。
Bleeding may be heralded by several day of exacerbation of pain . 数天的疼痛加剧可能为出血的先兆。
These faculae frequently are the forerunners of sunspot formation . 这些光斑常常是形成太阳黑子的先兆。
He told himself that it was with the pang which preceded recovery . 他告诫自己这种难受的感觉正好是全愈的先兆。
Some patients develop premonitory signs and symptoms, such as nervousness, sweating, and tachycardia . 病人可有先兆性症状,例如易于激动,出汗和心动过速。
The warm weather of the last few days had been a phony summer, the build-up to the storm . 前几天天气暖和,但那不过是夏天的一种假象,是这场暴风雨袭来的先兆。
The term cardiac arrest may be defined as an unexplained and unanticipated cessation of cardiac activity . 心博骤停一词可以下定义为原因不明,没有先兆的心脏活动停止。
Reserpine should not be administered to patients with a history of depressive episodes, and it should be discontinued if suggestive signs or symptoms develop . 利血平不能用于有抑郁症病史的病人,如果出现先兆性症状即应停药。
A severe cold may be the precursor of pneumonia 重伤风可能是急性肺炎的先兆。
Threatened abortion treated by modified baotai decoction 保胎饮加减治疗先兆流产36例