1.Students in the USA took part in a protest on Wednesday.
protest 抗议
His withdrawal can only be construed as a protest.
他的退场只能被理解为是一种抗议 。
2. She said: The NRA has held Congress hostage for years now.
hold...hostage 挟持...当作人质
You lured me here to hold me hostage in exchange for our warship.
你骗我过来,是想把我做人质交换战舰 。