bronchodilator

bronchodilator的音标为["brɔnkəudailəitə]，基本翻译为“支气管扩张剂”，速记技巧为“bronch=支气管，dilate=扩张，ator=……剂”。

bronchodilator的英文词源为：bronch(o) + dilator(使扩张的)。

变化形式：bronchospasm(支气管痉挛)，bronchitis(支气管炎)，bronchoconstrictor(支气管收缩剂)，bronchodilatation(支气管扩张)，bronchial(支气管的)，bronchogenic(支气管起源的)，bronchoplasty(支气管成形术)，bronchoscopic(支气管镜的)。

相关单词的意思和用法：支气管扩张剂，用于扩张支气管，缓解哮喘等症状。例如，β受体激动剂是常用的支气管扩张剂，可以激活β受体，从而扩张支气管。此外，茶碱类药物也可以作为支气管扩张剂使用。总之，bronchodilator在医学领域中有着广泛的应用。

以上内容仅供参考，建议到英语原语种国家查询相关资料。

bronchodilator常用短语：

1. bronchodilator therapy 支气管扩张剂治疗

2. long-acting bronchodilator 长效支气管扩张剂

3. short-acting bronchodilator 短效支气管扩张剂

4. inhaled bronchodilator 吸入型支气管扩张剂

5. beta-bronchodilator β受体激动剂

6. xanthine bronchodilator 黄嘌呤类支气管扩张剂

7. phosphodiesterase inhibitor bronchodilator 磷酸二酯酶抑制剂

例句：

1. Long-acting bronchodilators are commonly used to treat chronic obstructive pulmonary disease (COPD). 长效支气管扩张剂常用于治疗慢性阻塞性肺病（COPD）。

2. Inhaled bronchodilators are commonly used for the treatment of asthma and chronic bronchitis. 吸入型支气管扩张剂常用于治疗哮喘和慢性支气管炎。

3. Beta-bronchodilators are commonly used to improve lung function in patients with chronic obstructive pulmonary disease (COPD). 用于改善慢性阻塞性肺疾病（COPD）患者的肺功能。

英文小作文：

Bronchodilators are drugs that can relax the smooth muscle around the airways and improve lung function. They are commonly used to treat conditions such as asthma and chronic bronchitis.

When I was a child, I had asthma and my doctor prescribed me a long-acting bronchodilator. It helped me breathe more easily and I felt much better.

Now, as an adult, I still use a short-acting bronchodilator when I experience symptoms of asthma or chronic bronchitis. It helps me feel more comfortable and able to breathe normally.

Bronchodilators are very effective in relieving the symptoms of these conditions and can improve quality of life for many people. I am grateful for the medications that have been developed to help us manage these conditions better.