An electrode is a small piece of metal, carbon, or a wire that lets electricity go into or out of something — a battery, a tank of liquid, or a person’s body.

An electrodeelectrode is a small piece of metal, carbon, or a wire是一小塊金屬、碳，或一條電線 that lets electricity go into or out of something可以讓電流進出某個東西 — a battery, a tank of liquid, or a person's body像電池、一槽液體，或人的身體.

In science class, the two rods in a beaker are electrodes. On your chest during an ECG, the sticky pads are electrodes. Inside a battery, electrodes are the inner parts that the current moves between. Welders use electrodes as the metal rod that carries current to the join.

In science class在科學課上, the two rods in a beaker are electrodes燒杯裡的那兩根棒子就是electrode. On your chest during an ECG做心電圖的時候貼在你胸口, the sticky pads are electrodes那些黏貼片也是electrode. Inside a battery在電池裡面, electrodes are the inner parts that the current moves betweenelectrode是電流在中間流動所依靠的內部零件. Welders use electrodes as the metal rod that carries current to the join焊工則是把electrode當成把電流帶到接合處的金屬棒來用.

It is a science and medical word, not casual chat; at home people just say “the pads” or “the wires.” Though actually, an electrode is not the whole machine, and it is not the power itself. It is only the doorway the current uses.

It is a science and medical word這是科學和醫學用詞, not casual chat不是隨口聊天會用的字; at home people just say "the pads" or "the wires."在家裡大家就直接說「pads」或「wires」. Though actually不過其實, an electrode is not the whole machineelectrode不是整台機器, and it is not the power itself也不是電力本身. It is only the doorway the current uses它只是電流進出用的那道門.

Faraday made the word in 1833 from Greek pieces meaning “amber” (the old root of electricity) and “way.” The two special kinds with opposite jobs are the anode and the cathode.

Faraday made the word in 1833法拉第在1833年造出這個詞 from Greek pieces meaning "amber" (the old root of electricity) and "way."用希臘字根，一個意思是「琥珀」（electricity這個字的老根源），一個意思是「路」. The two special kinds with opposite jobs are the anode and the cathode功能相反的兩種特別electrode分別叫anode和cathode.