flip-flop，英語名詞，意思是觸發器，夾腳拖。
flip-flop
1 觸發器
名詞解釋：
It is a circuit that produces an output value of 0 or 1 that remains constant until a temporary pulse (a temporary change to a 1 that returns to 0) from another circuit causes it to shift to the other value. In other word, the output will flip or flop between two values under control of external stimuli.
2.夾腳拖.因為flip-flop連續啪啪作聲的意思,剛好跟夾腳拖走路時發出的聲響一樣.所以常用來泛指夾腳拖.
Flip-flopsaresimple type of footwear in which there is a band between the biggest toe and the other toes.
