Bear /give witness to a The tests bear witness to the quality of the new car 这些实验证明新车的质量很好 ■ The ruins of these temples, theatres and villas all bear witness to the past greatness of the Roman EmpireBear /give witness to ◼ The tests bear witness to the quality of the new car. 这些实验证明新车的质量很好。 ◼ The ruins of these temples, theatres and villas all bear witness to the past greatness of the Roman Empire