从中捣乱, 阻挠别人的计划

throw a spanner into the works spanner in the works in the works throw in the towel throw impediments in the way throw a lie in sb.'s face throw one's hat in the ring throw out a tub to the whale throw in throw-in a frog in the throat throw a spanner into the works in the works throw in the sponge throw in the towel throw out a tub to the whale throw a lie in sb's face throw a lie in sb.'s face throw one's hat in the ring throw in throw-in a voice in the wilderness a cat in the pan