Get yourself a few screw-top or Kilner-type jars, making sure the tops don't have any exposed metal that will react with the vinegar (plastic tops are perfect - provided they seal properly).
2
如果环境允许的话，请循环使用罐子，瓶子，塑料袋和报纸。
Recycle cans, bottles, plastic bags and newspapers if circumstances allow you to.
3
这些玻璃或塑料罐子被放置在皮肤上，然后利用抽吸装置排出空气，这会造成密封。
The glass or plastic cups are placed on the skin, and the suction device removes air. This creates a tight seal.
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