改进剂；实习生的英文

• improver

• 改进:    improve; make better; better ...
• 剂:    a pharmaceutical or other ch ...
• 实习生:    trainee; probationer
• 实习生:    apprentice; cadet; intern/trainee; internship; trainees; trnee ― trainee
• 实习生；实习牧师:    probationer