单词	with an effort
释义	with an effort 努力
随便看	reflection law of the wave reflection layer reflection learning reflection lens reflectionless reflectionless filter reflectionlessness reflectionless termination reflectionless transition reflectionless waveguide reflection level reflection light intensity reflection line algorithm Reflection lines reflection line-up reflection literature reflection lobe reflection lobes reflection loss reflection loss factor reflection loss measuring instrument reflection loss of light reflection,low reflection macroscope reflection,many