外文名：Good Manufacturing Practice
MyFavorite#recently(All the time,I am a little afraid of Teacher,answering questions with fear.I do not know why;the only thing I know is I need to
overcome this kind of feeling.JustNow,I answer a
question again in class.What I said is not so good,but yeah,I need to practice over and over and over again.
canary in a coal mine
Something or someone who, due to sensitivity to his, her, or its surroundings, acts as an indicator and early warning of possible adverse conditions or danger. Refers to the former practice of taking caged canaries into coal mines. The birds would die if methane gas became present and thereby alert miners to the danger. Wildlife in disaster movies assumes the role of the canary in a coal mine, fleeing the scene when catastrophe is imminent.