some part和some parts有什么区别?什么时候要加S?

some part和some parts有什么区别?什么时候要加S? some part of意思 in some parts of the world. in parts 和in part的区别 The man who runs the class will go through some particular part of the car,and we will learn about it.这句话中some particular part of the car为什么是part不是parts,是因为some在这里指“某些“所以用单数还是因为这里part不 with some part--time() to earn some money some take part in a neighborhood program Some parts of the book are difficult 翻译 Some of you will have parts in it.怎么翻译? Are some parts of your country colder than other?Why? Some gestures are c______in most parts of the worlworld some some some some some some Some