名詞 batting:

1. (baseball) the batter's attempt to get on base
2. stuffing made of rolls or sheets of cotton wool or synthetic fiber
   同義詞：batten

動詞 bat:

1. strike with, or as if with a baseball bat
   同義詞：bat
2. wink briefly
   同義詞：bat, flutter
3. have a turn at bat
   同義詞：bat
4. use a bat
   同義詞：bat
5. beat thoroughly and conclusively in a competition or fight
   同義詞：cream, bat, clobber, drub, thrash, lick

1. She heard the news without batting an eyelid.
   她聽了這個消息后，絲毫不動聲色。
2. The condemned man listened to his sentence without batting an eyelid.
   那被定罪的人木無表情地聽著對他的宣判。
3. An article of bedding consisting of a pad of tufted cotton batting or similar material, used on a floor or on a raised frame as a mattress or comforter.
   蒲團一種由分束棉絮或類似材料制成的墊子構(gòu)成的寢具，當作床墊或蓋被鋪在地板或凸起的框架上
4. I filled it with several layers of batting, making it puffy-cloud soft.
   我在里面填了好幾層棉絮，讓它象云絮一般柔軟。

bat.ting

n.（名詞）
The act of one who bats.
敲、打、擊：拍打
Cotton, wool, or synthetic fiber wadded into rolls or sheets, used for stuffing furniture and mattresses and for lining quilts.
棉絮：專為填塞厚墊或襯墊等用的棉絮或羊毛片

來源：
[Sense 2, from the beating of raw cotton to clean it]
[第二條解釋源自用棒拍打原棉或羊毛使之分散、干凈]