do one’s utmost;try by every possible means; try one’s best; do one’s utmost; use every ounce of one’s energy;pull out all stops 在外交上～…pull out all the diplomatic stops to…/～支持give all-out support/～反对energetically (or actively) oppose/～鼓吹boost with all one’s might;loudly trumpet/～抗拒stubbornly resist /～维护 vigorously defend