at once
Collocation
例子
He addressed the issue at once to prevent further complications.
他立即解决了这个问题，以防止进一步的并发症。
The manager approved the request at once, recognizing its urgency.
经理立即批准了请求，认识到了它的紧迫性。
02
立即, 同时
occurring or happening simultaneously
例子
She answered the phone and started writing notes at once.
她接了电话，立刻开始写笔记。
The rain poured and the wind howled at once, making the storm feel more intense.
雨倾盆而下，风同时呼啸，使风暴感觉更加猛烈。
