说"谢谢你"完全没有难度.但是如果这个词只是这个词本身的话,他没有任何意义.你需要怀着感激的心说出这些词,或者通过一些小细节表达你的感激.

But the words can lose meaning if they’re just words. You need to say them with sincerity, or show your gratitude through little actions.

youdao

说出我的心的唯一的目的就是：每天，面对着你，我压抑的情感越积越厚，都快让我喘不过气来了。

And the aim I show my heart to you is: Every day, facing you, my much depressed affection is accumulated deeper and deeper, and it make me too tired.

youdao

保持纯洁的心，不要轻易说出你的爱。

Keep purity of heart, never speak out your love.

youdao