bit part

When argillite formations at the lower part of intervals are drilled, critical bit weight and endurance failure factor of buckle formed by building assembly should be checked.

④钻遇下部井段泥板岩地层时，应对增斜钻具发生屈曲的临界钻压和疲劳破坏系数进行校核。

Sleeping is a developmental process and the genes also play a bit part I suppose.

睡觉,对宝宝老说,是大脑发育的一种阶段,当然和遗传也有点关系.

It was a bit of his part -- it was all very lighthearted.

所有的一切发生时都是轻松愉快的.

She is a bit long in the tooth to play the part of a young girl.

她扮演少女的角色年龄太大了一点.

This part is a bit tricky to understand.

这部分有点难理解.

Mary is a bit long in the tooth to play the part of a young girl.

玛丽扮演少女的角色年纪未免太老了点.