磨合 的英文怎麼說?

[1] to blend in[2] to bond with somebody[3] to know somebody[4] to be familiar with somebody[5] to make friends with somebody

blend in 是片語，形容一個人融入一個環境的意思。而 his unpleasant personality makes it tough for him to bond with anybody at the office. 的意思就是他的難搞的個性讓他跟別人的磨合令人心力交瘁。