coalescent的音標為[k???les?nt]，意思是聚合成一團。其速記技巧為：co-表示共同，-alescent表示生長的，所以coalescent表示聚合成一團。

Coalescent的詞源可以追溯到拉丁語，意為“合并的，聚攏的”。它的變化形式包括過去式coalesced，過去分詞coalesced，現在分詞coalescing和第三人稱單數coalesces。

相關單詞：coal（煤），collect（收集），aggregation（聚集），agglomerate（聚集），congregate（集合），coagulation（凝結），agglomeration（結塊），fusion（熔合），converge（匯聚）和convergence（匯聚）。這些單詞都與聚集或合并的概念有關，與coalescent有密切聯系。例如，coal和collect都與收集和聚集相關的物品有關，而agglomerate和agglomeration則與將物品聚集在一起的過程有關。

Coalescent在生物學中常用于描述種群遺傳學中的事件，如兩個或多個種群合并成一個單一的種群的過程。這個詞在描述物種分布和進化過程時非常有用。

常用短語：

1. coalescent with

2. coalescent process

3. coalescent model

4. coalescent theory

5. genealogical coalescence

6. coalescent time

7. coalescent events

雙語例句：

1. The two species are thought to have coalesced recently. （這兩個物種被認為最近才發生過合并。）

2. The coalescent process is a fundamental tool in population genetics. （聚類過程是遺傳學中一個基本工具。）

3. The coalescent theory explains how genealogies become more and more similar over time. （聚類理論解釋了家譜如何隨著時間的推移變得越來越相似。）

4. The coalescent process is a mathematical model of how genetic variation accumulates within a population. （聚類過程是一個數學模型，用于解釋種群內遺傳變異如何積累。）

5. The coalescent events in the genealogical tree represent the time when two branches of the tree merged together. （家譜樹中的聚類事件代表了樹上的兩個分支合并的時間。）

6. The coalescent process is a powerful tool for studying the history of human populations. （聚類過程是研究人類種群歷史的有力工具。）

7. The coalescent theory has been widely used in studying the evolution of species and populations. （聚類理論已被廣泛應用于物種和種群演化的研究。）

英文小作文：

Coalescent Theory and Its Applications

Coalescent theory is a mathematical framework that has been widely used in studying the history of species and populations. It provides a way to understand how genetic variation accumulates within a population and how different species or populations may have evolved over time.

The theory is based on a mathematical model of how genetic information is transmitted through generations and how different branches of the family tree may merge over time. Through this model, we can study the patterns of genetic variation and infer the history of population dynamics.

Coalescent theory has been used to study topics such as the spread of diseases, the origin and evolution of species, and the demographic history of human populations. It has also been applied to other fields such as conservation biology and ecology, where it can be used to understand how populations respond to environmental changes and other factors.

Coalescent theory is a powerful tool that can provide insights into the complex processes of evolution and population dynamics. Its wide range of applications demonstrates its value in addressing fundamental questions in biology and other related fields.