A cart full of milk-bottles rattled past.

一辆载满牛奶瓶的车子嘎嘎作响。

The baby was sucking away at the empty feeding-bottle.

那个孩子正吮吸着空奶瓶。

This top fits over the bottle and keeps the teat sterile.

这个盖子严实盖奶瓶上，保持奶嘴无菌。