A plain bearing
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🧩 词语组成解析
plain
[plein]
n. 平原;平地;[纺织业]平针;朴实无华的东西;
adj. 平的;素的;清晰的;相貌平平的;
adv. 清楚地，明白地;平易地;[用以加强语气]显然;完全地;
vi. 发牢骚;诉苦;
🗣️ 情景例句
He is behind the rest of the class in reading.
他在阅读方面不如班上的其他同学。
This time didn't count. Do it over!
这次不算，重来！
They had laboured for three years to produce this floating work of art;
瑞典人辛辛苦苦干了3年才建成这件水上艺术品，