draw a blank 抽空签 ; 脑中一片空白 ; 一无所获 ; 钻了一口干井
To draw a blank 不成功
draw a blank detail 抽空签
Efforts to explain this sudden reduction in child deaths appeared to draw a blank.
所有寻找造成儿童死亡率突然降低的努力都一无所获。
youdao
Mary had feared the day she would draw a blank during a presentation.
玛丽担心自己在演讲时头脑短路了。
You probably draw a blank.
你的想象可能一片空白。
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