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1. 向後
   She looked backwards when she heard someone calling her.

   當她聽見有人叫她時，她向後看了一看。

2. 倒，逆
   The teacher called the roll backwards.

   老師逆著順序點名。

3. 往回，向原處
   The ball rolled backwards.

   球往回滾去。

adv.

1. in the direction of one's back.
2. back towards the starting point.
3. in reverse of the usual direction or order.
   ▸towards the past.
   ▸towards a worse state.