You need to press-off the solution from the plastic bottle. 你得用力把塑料瓶中的`溶液挤出来。 I think the dog retrieved the plastic bottle 100 times! 我认为狗取回了塑料的瓶子100次！ You can use a large plastic bottle whose top was cut off. 你可以使用一个瓶颈被砍掉的大塑料瓶。 上一篇：ible为后缀的单词有哪些 下一篇：以a结尾的单词 |