The deputy airport manager said there was no apparent explanation for the crash.

机场副经理称那次飞机坠毁没有明显的原因。

《柯林斯英汉双解大词典》

If withdrawals from the ATM machine evaporate from your pocket without apparent explanation, it's time to keep better records.

如果从atm中取出的钱在没有明显的理由时就从你的口袋里蒸发了，你该把账目记得更好些。

youdao

Yes, the explanation for the explosion in food and oil prices - global demand exceeding the growth in global supplies - was apparent in the three or four years that preceded this crisis.

不错，对于食物和石油价格激增的解释——全球需求超过全球供给的增长——在这场危机之前的三四年间已清晰可见。

youdao

She says the apparent explanation is that the mosquitoes that transmit malaria like the landscape that's left after the forests have been cleared.

VOA: standard.2010.06.17

And according to Flores the explanation for these differences is not apparent because clear and consistent data are not available.

VOA: standard.2010.04.07

In our view, however, there is a more compelling explanation for the apparent apathy on this issue.

FORBES: Does Anyone Care About Voter Suppression?

Veteran number watchers have gotten used to the usual explanation that this apparent anomaly is caused by the discouraged worker effect.

FORBES: Silver Linings In Employment Data

There was no explanation for the apparent lesser charge.

WSJ: U.S. Denounces North Korea Sentencing