without noticing
英 美
without noticing what I was doing, I took hold of the knob, and open comes the door!
我没有注意到我在做什么,我抓住门把手,门开了!
She swung around to him, spilling her tea without noticing it.
她急转过身来对着他,茶水洒了出来她都没注意到。
It's hard to spend a fortune without noticing.
你很难在毫不留意的情况下花掉一大笔钱。
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