The Italian government has said in a preliminary report that the plane was hit by a heat-seeking missile.

意大利政府在一份初步报告中说道，飞机是被一枚热追踪导弹击中的。

《柯林斯英汉双解大词典》

A preliminary study of a shoal of ten flesh-and-blood sticklebacks shows that they do indeed mingle with therobot.

对一个有十条鲜活的棘鱼鱼群的初步研究显示，他们确实和那条机器鱼混在了一起。

youdao

A preliminary study in New Zealand has shown that classroom noise presents a major concern for teachers and pupils.

新西兰的一项初步研究表明，教室里的噪音是老师和学生最关心的问题。

youdao

But a preliminary report from the Arab Democracy Foundation says it does not believe that any of those irregularities will affect the outcome.

VOA: standard.2009.07.19

But again, pretty preliminary and not a complete study.

当然,只是初步结果,还没全部完成

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And this we take as preliminary evidence that they have a social interpretation.

这可以说是婴儿能够进行,社会场景解读的初步证据

耶鲁公开课 - 心理学导论课程节选

Preliminary results were encouraging, and even showed a benefit on reducing deaths in one dose--although experts warn to view that as preliminary until a larger study is done.

FORBES: ACC Conference

Under FBI guidelines, any suspicious activity could have prompted a preliminary or even a full investigation.

WSJ: U.S.: Russia Withheld Intel on Boston Bomb Suspect

The judge said a preliminary hearing and a detention hearing are scheduled for 3 p.m.

NPR: Attorney: Miss. Man Denies Mailing Ricin To Obama