fissure的音標是[?f???(r)]，基本翻譯是“裂縫；裂隙；裂口”。速記技巧是：f發短音/e/，i發/i/。

fissure的英文詞源是拉丁語“fissura”，意為裂縫。fissure的變化形式包括復數形式“fissures”和過去式“fissured”以及現在分詞“fissuring”。

相關單詞：

1. fissile - 裂變的，易裂的，這個詞由fissure和ile構成，表示可以分裂的。

2. fissure- crack, crevice - 裂縫可以導致裂縫、裂痕或狹縫，因此與fissure相關的單詞有crack和crevice。

3. fissure-divide, split - 裂縫也可以導致分化和分裂，因此與fissure相關的單詞有divide和split，表示分道揚鑣或分裂。

4. fissure-fracture, crackle - 裂縫還可以導致破裂或爆裂，因此與fissure相關的單詞有fracture和crackle，表示破裂或爆裂的聲音。

fissure在英語中通常指人體或地質結構中的裂縫，也可以指思想或情感上的裂縫。這個詞在描述地質結構時尤其重要，因為它可以用來描述地殼中的地震帶或火山活動等地質現象。

fissure的常用短語：

1. fissure healing： 指牙周組織在牙周創傷解除后，通過組織再生和修復而愈合的過程。

2. fissure sealant： 指涂敷在牙齒表面的樹脂材料，用于封閉牙齒發育中的發育孔隙，以預防齲齒的發生。

3. fissure widening： 指牙釉質發育溝或裂隙的加深或擴展。

4. fissure-like lesion： 指牙釉質發育不良形成的釉質發育溝或裂隙。

5. fissure fracture： 指牙齒表面的微小裂紋。

6. fissure-like defect： 指牙齒表面出現的類似裂紋的缺陷。

7. fissure-like appearance： 指牙齒表面出現的裂紋狀外觀。

例句：

1. The patient had a fissure-like lesion in the tooth and was advised to seek medical attention promptly.

2. The dentist applied a fissure sealant to the child"s teeth to prevent future cavities.

3. The fissures in the patient"s teeth worsened with age and required treatment.

4. The teeth of the elderly often have fissures due to wear and tear.

5. The athlete sustained a fissure fracture in his foot during a game and was unable to compete for several weeks.

6. The dentist used a laser to widen the fissures in the patient"s teeth and promote healing.

7. The doctor recommended that the patient have his teeth cleaned regularly to prevent fissure-like defects from developing.

英文小作文：

Fissures in Teeth: An Important Topic to Know About

Fissures are small cracks or splits that can appear in teeth for various reasons. They can be caused by various factors such as genetics, wear and tear, and dental trauma. Knowing about fissures in teeth is crucial because they can lead to serious dental issues if left untreated.

Fissures can appear in different forms such as fissure healing, fissure sealants, fissure widening, fissure-like lesions, fissure fractures, and fissure-like defects. Understanding these different types of fissures helps us understand their causes, progression, and treatment options.

Fortunately, fissures are preventable with proper oral hygiene measures and regular dental check-ups. Regular brushing and flossing can help reduce the risk of fissures developing, while regular dental check-ups can detect any existing issues early and provide treatment options before they become serious.

By being aware of fissures in teeth, we can take proactive measures to maintain good oral health and avoid future dental issues. Knowing about this topic is essential for maintaining good dental hygiene and preventing future dental problems.