At what time? Used to ask about time.

• Introduces direct or indirect questions about time.
• After a noun in isolation, expresses impatience.

何时；什么时候。用于询问时间。

• 引出关于时间的直接或间接疑问。
• 名词后单独使用，表示不耐烦。

At or during the time that; as soon as.

• Whenever; at any time that.
• In conditional statements, meaning if.

当…时；一…就….

• 每当；在任何…的时候。
• 在条件句中，表示如果。

At which, on which, or during which.

• The time at, on, or during which.
• A situation or circumstance in which.

在其时；于其上；在其期间。

• 某事发生的时间点或期间。
• 某种情形或情况下。

What time; which time.

什么时间；哪一时刻。

The time at which something happens.

某事发生的时间点。

That's enough, used to tell someone to stop pouring.

• Expressing impatience.

够了，用于让对方停止倒入或添加。

• 表示不耐烦。