occurs

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

Who was at the helm when the collision occurred?

当碰撞时,谁在掌舵?

The word “gratitude” did not occur in his words.

“感激”两字在他话中是见不到。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当褐斑，黑色素细胞在某些领域产过量黑色素。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸在上午九点。

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”铀矿体产于不整合面之下变质甚深粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身重于言。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红核颤抖症是一种少见运动疾患，它通常和中脑病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

落基山斑疹热是一种人共患立克次体病。

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，手术治疗是唯一选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

铁矿很多，并且含钴，在硫化物块体中成稠密斑块。

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仪器或装置。

Dueling occurs in his writings passim.

决斗在他作品中到处可见。

Salt occurs naturally in sea water.

盐天然存于海水中。

I hope this won't occur again.

我希望不要再这种事情。

Opportunities for learning occur spontaneously every day.

学习机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧事经常。

A startling cultural transformation occurred in post-war Britain.

战后英国文化出现了令人惊讶变化。

A new outbreak of smallpox occurred in 1928.

1928 年爆了新一轮天花。