What is immediately striking is how resourceful the children are.最令人注目的是孩子们的机智聪明.He is very clever and endlessly resourceful.他聪明机敏、足智多谋.He really is resourceful.他还真有办法....
气缸中的蒸汽膨胀并推动活塞向外运动.Steam in a cylinder expands to push a piston outward.当排气冲程开始时, 气缸被向上运动着的活塞刮掠.When the exhaust stroke starts, the cylinder is swept out by the upmoving piston.在发动机气缸里发生的动作,可以分为四个过程或冲程.The actions taking ...