词汇	Jan血型抗原
释义	Jan血型抗原医Blood group antigen Jan
随便看	difficult sounds difficult students difficult subject Difficult survival position difficult swallowing difficult task difficult technical issue difficult temperament difficult terrain event difficult terrain for cycling difficult test difficult thing difficult-ties difficult times Difficult times lie ahead Difficult times lie before us difficult to difficult-to-access difficult to access medical service Difficult to align its content difficult to a man difficult to assess Difficult to comprehend or see Difficult to comprehend or see;illegible Difficult to comprehend or see; illegible