coincidental

coincidental的音标是[ˌkəʊɪnɪˈsɪdənt]，翻译为“巧合的；同时发生的”。

其速记技巧是：coincident（同时发生的）+ al（形容词后缀）→同时发生的。

Coincidental这个词源自拉丁语coincidere，意思是“同时发生”或“一致”。它的变化形式包括过去式coincidid，过去分词coincidites，现在分词coincident和形容词coincident。

相关单词： coincidence (n.) - 意为“同时发生，一致”，其词根coincide也来自coincidere，可以理解为“同时发生”或“一致”。另外，还有coincidence of fate（命运的巧合）这样的说法。Coincidentally（副词）意为“巧合地”，这个单词的使用也很常见。

至于其它的相关单词，如concurrent（adj. 同时存在的，竞争的；n. 与…同时存在的），concurrently（adv. 同时地，并列地）等，这些单词都与coincident有相似的含义，表示同时发生或存在的情况。同时，也与合作、共同存在等含义相关。

总的来说，coincidental这个词及其变化形式和相关单词都表示同时发生、一致、巧合等含义，这些单词在英语中应用广泛，能够生动地表达各种复杂的情况和关系。

Coincidental短语：

1. Coincidental occurrence 巧合发生

2. Coincidental events 巧合事件

3. Coincidental occurrences 巧合发生的事情

4. Coincidental timing 巧合的时间安排

5. Coincidentally 巧合地

6. Coincidentally related 巧合地相关的

7. Coincidentally occur 同时发生

双语例句：

1. We had a coincidental meeting at a party last night. （昨晚我们在一个聚会上偶然相遇。）

2. These two events happened coincidentally. （这两件事情巧合地发生了。）

3. It was coincidental that we arrived at the same time. （我们同时到达真是巧合。）

4. Coincidentally, I ran into an old friend today. （今天我偶然遇到了一个老朋友。）

5. They were both injured in a coincidentally similar accident. （他们在一次巧合相似的事故中都受了伤。）

6. It was a coincidence that we were both at the same party last night. （昨晚我们都在同一个聚会上，纯属巧合。）

7. We both happened to be in the same city at the same time. （我们恰巧在同一时间都在同一个城市。）

英文小作文：

Coincidence and Fate

Coincidence is something that happens by chance, without any apparent pattern or reason. It can be a surprise or an unexpected event that happens by chance. However, some people believe that there is more to coincidence than just chance, and that there is a deeper meaning or purpose behind it.

For example, if two people meet by chance in a crowd of thousands, it could be because they are destined to meet or it could be just a coincidence. Similarly, if two events happen at the same time, it could be because they are unrelated or it could be that they are connected in some way.

Coincidence can be a beautiful thing, but it can also be a mysterious and powerful force that can shape our lives and destiny. We should not dismiss coincidence as just a random event, but we should also not overestimate its importance and significance. We should always remember that our lives are shaped by our choices and actions, not just by coincidence or fate.