be all attention的用法和樣例：
例句
- We are paying close attention to the leadership over spring ploughing.
我們十分注意春耕生產的領導。 - Precast concrete requires careful attention to the joinery between precast elements.
對於預製混凝土結構物，需要十分注意預製構件間的連接。 - He was all ears at the meetings.
他在會上全神貫注地聽。 - He riveted his attention on his work.
他全神貫注地工作。
