So we got her logged in to her email, started composing the email and then we came to the point of attaching the pictures.
于是我们就登陆了她的邮箱，开始写邮件，接着就要选择图片添加到附件了。
2
Attaching amino acid to the resin is the sticking point in the whole synthesis, because it has the most important effects on the yield and purification of ultimate product.
第一个氨基酸与树脂连接反应是整个合成过程中最关键的反应，它的好坏直接关系到最终产品的产率和纯度。
3
The bond is broken releasing the 5 'end of the intron and attaching it to the branch point sequence, the intron now forms a tailed loop structure called a lariat.