airtight seal造句怎麼寫
- 造句
- 關注:1.45W次
Take a normal breath, cover the victim's mouth with yours to create an airtight seal, and then give two, one-second breaths as you watch for the chest to rise.
Don't force it in too hard - just make sure it forms an airtight seal.
airtight sealed metal container for food or drink or paint etc..
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