toothbrush的复数形式怎么拼写？

...an old toothbrush.一把旧牙刷The toothbrush gently removes plaque without damaging the gums.这种牙刷可以温和去除牙菌斑而不损伤齿龈。As soon as the bristles on your toothbrush begin to wear, throw it out.牙刷毛一开始磨损，就把它扔掉。He was short and tubby an...

He has refused to let me use his toothbrush.他拒绝让我使用他的牙刷.Have you brought your toothbrush with you?你带牙刷来了 吗 ?Who belongs to this toothbrush?这支牙刷是谁的?...

n.牙刷...

toothbrush的音标：toothbrush的英式发音音标为：['tu:θbrʌʃ]toothbrush的美式发音音标为：['tuθˌbrʌʃ]...