他援引教授物理学方面的一些运动定律为例，说明当计算机用于辅助教学时，学生在幼年就能够理解这些定律。 He cites as an example the teaching of the laws of motion in physics, which he says are accessible at an early age when a computer is used to assist in the instruction.
紧急救难处随时可以驰援。 The emergency services stand (ie are) ready to help if necessary.
他认为他有责任加以援助。 He deemed that it was his duty to help.
