You could show the baby a green patch.
你可以给婴儿看一个绿色的色块。
It was a patch of green grass.
这是一个补丁的绿草。
Connect the green (or negative) alligator clip to the right elbow electrode patch.
将绿色的(或负极)鳄鱼夹连接到右肘的电极片上。
Connect the green (or negative) alligator clip to the right elbow electrode patch.
将绿色的(或负极)鳄鱼夹连接到右肘的电极片上。
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