以上内容由AI生成, 仅供参考和借鉴

1. Draw the floss backwards and forwards between the teeth.

将牙线在齿间来回拉动。

2. He works backwards, building a house from the top downwards.

他把工序倒过来了，从上往下建房子。

3. The third wave was so strong it knocked me backwards.

第3波浪太大了，把我打了回去。

4. Greater government intervention in businesses would represent a step backwards.

政府加强对企业的干涉将是一种倒退。

5. He just released his hold and toppled slowly backwards.

他刚一松开手就缓缓向后倒下。