在中文中，“同时”一般可以用“同时”或者“同时刻”来表示。在英语中，“同时”的常用表达方式有：
At the same time
Simultaneously
Concurrently
这些表达方式均源自拉丁文，其中“at the same time”是最常用的表达方式，“simultaneously”和“concurrently”次之。
例句：
I have to finish my homework and take care of my pttle sister at the same time.（我必须同时完成我的作业并照顾我的小妹妹。）
The two speakers talked simultaneously, making it difficult to understand what they were saying.（两位演讲者同时讲话，很难理解他们在说什么。）
The company is launching two new products concurrently.（公司将同时推出两款新产品。）
At the same time
Simultaneously
Concurrently
这些表达方式均源自拉丁文，其中“at the same time”是最常用的表达方式，“simultaneously”和“concurrently”次之。
例句：
I have to finish my homework and take care of my pttle sister at the same time.（我必须同时完成我的作业并照顾我的小妹妹。）
The two speakers talked simultaneously, making it difficult to understand what they were saying.（两位演讲者同时讲话，很难理解他们在说什么。）
The company is launching two new products concurrently.（公司将同时推出两款新产品。）