请递给我一双公筷好吗？
多使用公筷是很有必要的。
众所周知，与他人一起吃饭时，我们需要使用公筷。
As we all know, using public chopsticks is necessary when we eat with others.
用膳时要用公筷及公匙。
用本身筷子的上方夹菜给他人。（若是没有公筷用的时辰。）
Use the clean top ends of your chopsticks when you get food from large serving dishes to someone. (If serving chopsticks are not available).
当然，和家里人就没这个必要了，难道你在家吃饭也要用公筷？
Of course, and the family no such need, and do you have to use chopsticks to eat at home?
用公筷、公勺帮人让菜，不可用自己用过的筷子、勺子帮人让菜。
Help people to dish with serving chopsticks, centiliter, and never help people to dish with chopsticks or your used ladle.
用公筷、公勺帮人让菜，不可用自己用过的筷子、勺子帮人让菜。
Help people to dish with serving chopsticks, centiliter, and never help people to dish with chopsticks or your used ladle.
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