Taking egg yolks from an empty bottle has failed many times.空瓶取蛋黃，多次的失敗

You can see on the Internet that you can easily take out the egg yolk with an empty bottle. It requires a suitable bottle and multiple trainings. Here is the scene of the first experiment.
網路上可以看到用空瓶很輕鬆把雞蛋黃給取出來，需要合適的瓶子以及多次訓練才可以，這裡展示第一次實驗的場景。

[@SometimesIamNot]

蛋黄吸起来后不能松劲，你那个瓶子太敞口了

[@xipa668]

OK, I will try a bottle with a smaller opening.