Packing ring
[化] 密封圈; 填料环\\n[医] 充填圈
🧩 词语组成解析
packing
['pækiŋ]
n. 包装，打包;包装材料;（缝隙）填料;
v. 压紧(pack的ing形式);装满;
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
I guess they're trying to set up an appointment for me.
我猜他们正设法给我安排晤谈。
What youth is used to, age remembers.
青年时经常做的事，老年时却能记得起。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？