"Be sure the cue is clear and available," he cautions.

他警告说：“要确保线索清晰可用。”

youdao

That may be a hint that yawn evolved as a social cue—"time for us all to go to bed".

也许这是打哈欠进化为社交线索的一种暗示——“到我们大家睡觉的时间了”。

youdao

"But be sure the cue is clear and available," he cautions.

他警告说：“但要确保线索清晰可用。”

youdao

If we don't go up - in the position we're in - that would be my cue to end it all and get out of the game!

BBC: Chiles on Championship promotion

If we were watching a Hollywood comedy, this would be a cue for careful bonding, with the kid gradually drawn out of himself and the feckless adult impelled to take responsibility.

NEWYORKER: Home Turf

After that, time has been set aside to consider private bills - which may be the cue for another Chope-athon, with the indefatigable Conservative MP and a small band of allies staging another ambush against legislation they regard as too restrictive or financially irresponsible.

BBC: Week ahead