▪ The hotel staff were unfailingly polite.
酒店员工始终彬彬有礼。

▪ It is polite to thank your host.
感谢主人是礼貌的。

▪ He gave a polite refusal.
他客气地拒绝了。

▪ She nodded in a polite way.
她礼貌地点了点头。

▪ The tent was held up by a wooden pole.
帐篷由一根木杆撑着。

▪ The North pole is covered in ice.
北极被冰雪覆盖。

▪ Opposite charges attract like two poles.
异极相吸，如同两极。

▪ They were at opposite poles on the issue.
他们在这个问题上立场两极对立。

▪ It is impolite to stare.
盯着人看是不礼貌的。

▪ His impolite remark angered her.
他粗鲁的话激怒了她。

▪ She thought the question was impolite.
她觉得这个问题很无礼。

▪ Burping loudly is considered impolite.
大声打嗝被认为无礼。

▪ Polar bears live on sea ice.
北极熊生活在海冰上。

▪ The two views are polar opposites.
这两种观点截然相反。

▪ A polar wind swept the plain.
极地寒风掠过平原。

▪ The debate was polar in tone.
这场辩论语气两极对立。

▪ The issue polarized the whole country.
这个问题使全国两极分化。

▪ Social media tends to polarize opinions.
社交媒体往往使观点两极化。

▪ The audience polarized into two camps.
听众分裂成两个阵营。

▪ Climate talk can polarize a room.
气候话题会让一室人对立。

▪ He polished his shoes every morning.
他每天早晨擦鞋。

▪ Use a soft cloth to polish the glass.
用软布擦亮玻璃。

▪ She polished off the report by noon.
她中午前迅速写完报告。

▪ The floor had a deep polish.
地板上了厚厚的光。

▪ Factories pollute the river every year.
工厂每年污染这条河。

▪ Thick smoke polluted the air.
浓烟污染了空气。

▪ Careless litter pollutes the beach.
随意丢弃的垃圾污染海滩。

▪ The idea polluted young minds.
这种想法毒害年轻人的心灵。

▪ The magnet has two opposite polarities.
磁铁有两个相反的极性。

▪ There was a sharp polarity between the teams.
两队之间尖锐对立。

▪ They measured the battery’s polarity.
他们测量了电池的极性。

▪ Public opinion shows growing polarity.
公众舆论日益两极化。