一边……一边…… The Structure "一边……一边……"

“一下”用在动词后面，表示一次短暂的动作，相当于动词的重叠式AA，宾语可以省略。例如：
"一下" is used after a verb to indicate a short action, similar to the reduplicative form (AA) of a verb. The object of the verb can be omitted. For example:

“一……就……”结构可表示两件事情紧接着发生。两件事情的主语可以相同，也可不同。例如：
The structure "一……就……" (...as soon as…) can indicate two events happening one immediately after the other. The two events may or may not share the same subject. For example:

• 100年前，塑料一出现就受到人们的普遍欢迎。
• 等女儿一回来我就告诉她这个好消息。

“一……就……”结构表示“要是……就……”的意思，“一”后面表示条件，“就”后面表示在前一个条件下产生的情况。两种成分的主语可以相同，也可不同。例如：
"一……就……" can also mean "If..., then...", in which "一" is followed by a situation that indicates a condition, and "就" is followed by a situation that would occur under the condition. The two situations may or may not share the same subject. For example:

• 儿子小时候一说话就脸红，回答老师问题的时候声音也很小，我当时很为他担心。

• 父母必须让孩子从小就知道，不是所有的东西一哭就能得到。

• 妈妈一进房间，他就把手机装了起来。