详细解释:ad. 故意地
词意辨析：
deliberately, on purpose上述用作副词的词和词组均有“有意地、故意地”之意。
deliberately: 指经过深思熟虑后而行事。
on purpose: 侧重所作所为具有特殊目的。英语解释：
副词 deliberately:
with intention; in an intentional manner同义词：intentionally, designedly, on purpose, purposely, advisedly, by choice, by design