I don't have the guts to ask her out.
I wanted to ask her out, but I lost my nerve and couldn't go through with it.
I didn't have the nerve to tell him what I really thought of his suggestion.
3. backbone: 骨气，勇气
Will he have the backbone to tell them what he thinks?
4. dare: 敢，不惧
I wouldn't dare have a party in my flat in case the neighbours complained.
I've always been afraid of flying.
I dread to think what would happen if he was left to cope on his own.
You have to admit it - the woman's got balls!
She showed a lot of pluck in standing up to her boss.
She had more sand in her than any girl I ever see.