Wǒ / hěn / xiǎng / cān / jiā / zhè / cì / huó / dòng / kě / xī / xīn / yǒu / yú / ér / lì / bù / zú我很想参加这次活动,可惜心有余而力不足。I really want to take part in this activity, but unfortunately I lack the strength to do so.