Penny-pinching landlords stinted their tenants on heat and hot water.
小
的房东在房客的
暖和热水供应上

扣。
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英语 Whatever the irritants are, their effect is to stimulate hypertrophy and hyperplasia of the mucinous glands in the main bronchi, as well as the goblet cells in the smaller airways - the bronchioles, which increases mucus production in both locations.
无论哪种刺激,
会激发主支气管黏液腺以及小气
杯状细胞的肥大增生,使得肺内各个部位黏液产生增加。