Prince Harry and his wife, Meghan, appeared in a video encouraging Americans to register to vote, dipping a toe into United States politics in a way royal family members typically avoid.
The couple, known formally as the Duke and Duchess of Sussex, did not endorse any candidates, and much of the focus was on building compassion and better discussions.
By tradition, members of the royal family are expected to stay out of politics, both domestic and foreign. The couple, who gave up their royal duties in January and are now living in California, have openly conveyed their interest in the U.S. presidential election and the importance of voting but have stopped short of endorsing a candidate.
dip（one’s） toe into （something）：慣用語，小心嘗試，探索，摸索。例句：The talented actress said she seriously considered quitting acting and would like to dip her toe into the professional world of interior design.（這名才華洋溢的女演員說，她認真考慮息影，想嘗試室內設計此一專業領域。）
stay out of something：慣用語，不介入，置身於…之外。
stop short of something：慣用語，差一點就…就差沒。例句：I stopped short of telling her the truth. （我差一點就對她吐實了。）