Translation

• conveniently
• without extra trouble
• while doing it
• in passing

Synonyms

• 信手, 就手, 跟手, 顺手

Examples

• 当他写字时， 他总是随手拿著一本字典。
  When he writes, he always keeps a dictionary at hand.
• 所有学英语的学生应该随手有一本好的英英词典。
  All students of English should have a good English-English dictionary at hand.