帮忙翻译一下下面这几个英文句子，谢谢！！

1.我一定要感谢那些在我处境艰难时支持我的所有人（stick by） I am obliged to thank all those who sticked by my side when I was in such a difficult situation. 2.这是一次重要的会议，请务必不要迟到。（see to it that） Please see to it that don't ever be late for the important meeting. 3.这些科学家把