And now for the main event, we have auxin — not you, auxin.

现是生长，不是你，是生长。

Cytokinin and auxin are often fighting with each other, and sometimes gibberellin and auxin team up to stimulate fruit development.

细胞分裂和生长经常相互争斗，有时赤霉和生长合作刺激果实发育。

Basically, without auxin, a plant would be knocked out… of life!

基本上，没有生长，就会失去生命！

When a plant's an embryo, auxin helps decide which half of it will become the root and which will be the shoot.

当还是胚胎时，生长帮助决定哪一半将成为根，哪一半将成为芽。