mid 15c., "having experience," from experiment (n.) + -al (1). Meaning "based on experiment" is from 1560s. Meaning "for the sake of experiment" is from 1792.
双语例句
1. For the time being, however, immunotherapy is still in its experimental stages.
但免疫疗法目前仍处于实验阶段。
来自柯林斯例句
2. Yesterday he changed his tune, saying the fare increase was experimental.
昨天他变卦了，说提价只是试行。
来自柯林斯例句
3. They worked hard every day to keep their experimental plot up.
他们天天埋头苦干,以把试验田种好.
来自《简明英汉词典》
4. The state farm assigned the experimental plot to that group.
