Sealed bearing
[化] 密封轴承
🧩 词语组成解析
a. 未知的, 密封的\\n[法] 盖印的, 经盖章批准或证实的, 密封的
🗣️ 情景例句
Maybe you saw our commercials on TV.
也许你在电视上看过我们的广告。
I'm telling the truth. I'm not lying.
我说真的，不骗你。
It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
据估计，在英国蜘蛛一年里所消灭昆虫的重量超过这个国家人口的总重量。