trailblazer：开拓者，开路先锋

trail,踪迹，小径，blaze,燃烧，-er,人。比喻用法。

• expend
• expenditure
• expense
• expensive
• experience
• experienced
• experiment
• experimental
• experimentally
• experimentation
• expert
• expertise
• expiate
• expiration
• expire
• expiry
• explain
• explanation
• expletive
• explicable
• explicate
• explication
• explicit
• explode
• exploit