Misprints occur on every page.
每一面都有印刷错误。
情况的发生，强调动作的偶然性。
安
准备而发生的事，特指巧合。的发生。Misprints occur on every page.
每一面都有印刷错误。
an infection that occurs in swans
在天鹅中出现的传染病
it is understandable that mistakes occur sometimes.
有时会出错是可以理解的。
if anything should occur, ...
如果发生什么事情的话,
Such plants don't occur here.
这种植物不能在这里生存。
An explosion will probably occur at any minute.
炸弹随时可能爆炸。
I hope this won't occur again.
我希望不要再发生这种事情。
Silver occurs natural.
银是天然存在的。
Didn't it occur to you to close the window?
难道
有想到去关窗户吗?
Salt occurs naturally in sea water.
盐天然存于海水中。
problems like these should not occur, but accidents will happen.
这类问题不应出现，但保不定会有意外的。
two species of Diptera occur in the maritime Antarctic.
2种双翅目昆虫在南极洲沿海被发现。
radon occurs naturally in rocks such as granite.
氡自然存在于花岗岩等岩石中。
the species occurs regularly on passage .
这种鸟作有规律的迁徙活动。
The child's birth occured at 2 a. m.
这孩子凌晨两点出生。
Heavy rains occur during a summer monsoon.
暴雨出现在一个夏季季风期
Dueling occurs in his writings passim.
决斗在他的作品中到处可见。
Mental and physical deterioration both occur naturally with age.
随着年龄的增长，心智和体力自然衰退。
Who was at the helm when the collision occurred?
当碰撞发生时,谁在掌舵?
The word “gratitude” did not occur in his words.
“感激”两字在他的话中是见不到的。
Police said that the blast occurred at 9 a.m.
警方说这次爆炸发生在上午九点。
Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.
一旦病患出现感染症状时，手术治疗是唯一的选择。
A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.
验震器是仅仅指示地震发生的仪器
装置。
I hope this won't occur again.
我希望不要再发生这种事情。
Opportunities for learning occur spontaneously every day.
学习的机会每天都会自然而然地出现。
Very often tragedies or near tragedies occurred.
悲剧近乎悲剧的事经常发生。
A startling cultural transformation occurred in post-war Britain.
战后英国的文化出现了令人惊讶的变化。
A new outbreak of smallpox occurred in 1928.
1928 年爆发了新一轮的天花。
It occurred on the morning of the fifteenth.
事情发生在15号的上午。
I hope no accident has occurred to him.
我希望他出什么事。
Mental and physical deterioration both occur naturally with age.
随着年龄的增长，心智和体力自然衰退。
The usual bipyramid-shaped parasporal bodies occur in Lepidoptera-active strains.
一般双金字塔形伴胞体形成于鳞翅目活性株。
When melasma occurs, melanocytes in certain areas overproduce melanin.
当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。
The child's birth occured at 2 a. m.
这孩子凌晨两点出生。
Hypnagogic hallucinations may occur in this state, especially auditory ones.
由于造梦者的而且确仍然身处梦中，这个现象被称为「假清醒」。
Such disparagement of anthropomorphism occurred in the ancient world, too.
例如，凯尔特人就看不起希腊人的这种做法。
Signomial geometric programming(SGP)problems often occur in engineering design and management.
符号几何规划(SGP)问题经常出现在工程设计和管理中。
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