However, the pace and timing of the recovery is still highly uncertain.

然而，复苏的速度和时间仍然是十分不确定的。

youdao

The outcome of the election remains highly uncertain, since no public polls have yet been conducted on the new second-round matchup.

因为在新的第二轮竞争中，并没有进行过民意调查，所以选举的结果现在还很难说。

youdao

One likely factor is that they regard the outlook for the economy as highly uncertain, particularly in America and Europe.

一个可能的因素就是它们认为经济前景非常不确定，特别是在美国和欧洲。

youdao

"Production of vaccines remain highly uncertain and highly antiquated."

VOA: standard.2010.04.29

Chernobyl's death toll is highly uncertain, but may have reached a few thousand people.

ECONOMIST: Japan's hydra-headed disaster

The returns are highly uncertain, because the big profits (if any) are many years away.

ECONOMIST: Buttonwood: Backing greens with greenbacks | The

The lure of that payout has drawn many players to this expensive, drawn out, and highly uncertain game.

FORBES: The Race for Energy Resources Gets Hotter