求英语达人帮忙翻译成英语！

1. R & D of new products;
2. The improvement of existing products;
3. According to the different needs of customers choose the right models and control systems, and changes accordingly

Who am i? That's the secret i'll never tell.

U know u love me. X.O.X.O Gossip Girl.
这是GG片头的一段独白，很吸引人。

"X.O.X.O"后来才知道就是"亲亲抱抱"。
"x" - kisses - 亲亲留下的唇印
"o" - hugs - 拥抱
但是连起来要把hugs放在前面，也就是"hugs & kisses"了。

XOXO代表了“拥抱和亲吻”，或者“爱并亲吻”。

谁是亲吻，谁是拥抱？

X是拥抱，O是亲吻

坚持这种说法的人认为，X像拥抱时交叉的双臂，而O像亲吻时撅起的嘴唇。

普遍认识：X是亲吻，O是拥抱

这是牛津英语辞典收录的解释。有语言学界的权威指出，从鸟瞰的视角看，O正是两个人张开双臂拥抱对方，而X就像两个人嘴碰嘴。

1.New product research and development;
2.Improvement of existing products;
3.According to the different needs of customers choose the right models and control systems, and changes accordingly