句子不完整,in their后面有东西,可能是in their spare time.
主句为we surveyed 300 young people;on在这里相当于about关于;
what they like to do at weekends. what they like to do in their spare time.在句中充当名词的作用.
大概意思:we surveyed people about something
我们调查了300个年轻人,调查他们周末或闲暇时做什么.
句子不完整,in their后面有东西,可能是in their spare time.
主句为we surveyed 300 young people;on在这里相当于about关于;
what they like to do at weekends. what they like to do in their spare time.在句中充当名词的作用.
大概意思:we surveyed people about something
我们调查了300个年轻人,调查他们周末或闲暇时做什么.