1.
The ordinal number matching the number one trillion in a series.
第一万亿，第一兆可数数列中与一万亿相对应的序数
2.
First sign of old age."
衰老的第一个征兆。”
3.
The event was the beginning of the end of the Second World War.
这一事件成了第二次世界大战终局结果的先兆。
4.
The initial MRI scan failed to find anything significant in the cranial fossa.
第一次核磁共振检查显示颅内无明显病兆。
5.
The first hint of bad news came precisely a week later.
坏消息的第一个兆头，是整整一星期后显露出来的。
6.
The first money or barter taken in, as by a new business or on the opening day of business, especially when considered a token of good luck.
利市新生意或生意开张的第一天所赚的第一笔钱或第一位顾客，尤其当这被视为好运的兆头时
7.
Mega: Million. Abbreviated "M".
兆:一百万的词冠。
8.
When she told Marianne what she had done, however, her first reply was not very auspicious.
然而，当她将此事通知玛丽安时，她的第一个答复，显得兆头大为不妙。
9.
Excess fluoride produces osteoscherosis, the first signs of which appear in the vertebrae.
过多的氟化物可能产生骨硬化，其第一个征兆出现在脊椎。
10.
It was an omen among omens, pointing a path for him to tread.
这是预兆中的预兆，指引着他走一条路。
11.
tera hertz
兆兆赫兹, 兆兆周
12.
a steadily escalating sense of foreboding; the lawyer had a presentiment that the judge would dismiss the case.
这是一种不祥的预兆。
13.
to be a menacing indication of something:The clouds threaten rain.
某物的一种险恶的征兆。
14.
These symptoms are almost always acute and the attacks usually begin suddenly, without warning in the big toe at night after a person has been asleep for a while.
痛风通常起病急骤，无先兆，多于夜间入睡后在第一跖趾指关节突然发作。
15.
In spring I touch the branches of trees hopefully in search of a bud, the first sign of awakening Nature after her winter's sleep.
春天里我触摸着树枝，满怀热望地寻觅着大自然冬眠醒来的第一个征兆——嫩芽。
16.
China cites these facts as evidence of a third consumer revolution.
中国把这看作第三次消费革命的征兆。
17.
One kilobit( Kb) is1024 bits. One megabit( Mb) is1024 kilobits. One gigabit( Gb) is1024 megabits.
一格千比是1024比特。一兆比是1024千比特。一吉比是1024兆比。
18.
Another is to urge people to get tested if they see signs of the disease.
第二是督促大家发现疾病征兆时去检查；