estuarine的音標(biāo)為[??st??r?n]，基本意思是“河口的，海灣的”，速記技巧是：e-s-t-a-r-i-n，諧音是“愛死太累人”。

Estuary這個(gè)詞源自拉丁語(yǔ)“estuare”，意為“流動(dòng)”。它的變化形式包括過去式“estuated”和過去分詞“estuated”。相關(guān)單詞包括：

1. Estuary - 河口，入海口，是海洋與河流的交匯處。

2. Estuarine - 河口的，與河口有關(guān)的。

3. Estuarine sediment - 河口沉積物，通常由河流帶來(lái)的泥沙和有機(jī)物質(zhì)組成。

4. Estuarine ecology - 河口生態(tài)學(xué)，研究河口區(qū)域的生物群落和環(huán)境系統(tǒng)的學(xué)科。

5. Estuarine flooding - 河口洪水，通常由暴雨或風(fēng)暴引起。

6. Estuary delta - 河口三角洲，是由河流帶來(lái)的泥沙堆積形成的三角地形。

7. Estuary fisheries - 河口漁業(yè)，是海洋漁業(yè)的一部分，因?yàn)楹涌诘呢S富營(yíng)養(yǎng)物質(zhì)和多樣性。

8. Estuary pollution - 河口污染，由于人類活動(dòng)和工業(yè)排放導(dǎo)致的水質(zhì)惡化。

9. Estuary sedimentation - 河口沉積，是指泥沙在河口沉積的過程。

10. Estuary wetland - 河口濕地，是河口區(qū)域的一部分，通常由沼澤、灘涂和淺水區(qū)組成。

常用短語(yǔ)：

1. estuarine mudflat 河口泥灘

2. estuarine sediment 河口沉積物

3. estuarine ecosystem 河口生態(tài)系統(tǒng)

4. estuarine water quality 河口水質(zhì)

5. enter estuary 進(jìn)港

6. in estuary 在河口

7. out of estuary 出港

例句：

1. The ship entered the estuarine mouth and began to navigate through the muddy estuarine mudflat.

2. The estuarine sediment is rich in nutrients and is a major source of water pollution in many coastal areas.

3. The estuarine ecosystem is an important habitat for many marine animals and plants.

4. The estuarine water quality is closely related to the health of the local environment and economy.

5. We should protect the estuarine environment and ensure that it remains a safe and healthy place for people to live and visit.

6. The outfall of the estuary is a crucial point for water transportation and trade, and it must be carefully managed to ensure that it remains safe and efficient.

7. The estuarine environment is constantly changing and requires constant monitoring and management to ensure its sustainability.

英文小作文：

Title: Estuary: A Vital Habitat for Marine Life

The estuary is an important habitat for marine life, providing a rich variety of food and habitats for a range of animals and plants. The rich nutrients in the estuarine sediment support a diverse array of marine organisms, while the clear water of the estuary provides safe shelter and feeding grounds for many species.

The estuary also plays an important role in the environment as a carbon dioxide filter, absorbing carbon dioxide from the atmosphere and helping to reduce the effects of climate change. However, the estuarine environment is constantly changing due to human activities such as pollution and deforestation, which can have a negative impact on the health of the ecosystem.

To ensure the sustainability of the estuarine environment, we must take measures to protect it and manage its resources carefully. This includes reducing pollution, conserving habitats, and promoting sustainable use of marine resources. Only by working together can we ensure that the estuary remains a vital and healthy place for marine life to thrive.