你跑得那么快还赶不上他何况我呢: if a good runner like you can't catch up with him how can
不怕: be not afraid of; not fear 短语和例子不怕艰难困苦 defy difficulties and hardships; 不怕牺牲 be not afraid of sacrifice; 不怕苦和死 without fear of hardship or death; 他不怕死。 he knows no fear of death