我不擅长那个项目:I am not good at that event .
Tom打算参加跳高：
Tom is going to take part in in the high/flying jump.
Tom is going to participate in the high/flying jump.
Tom is going to join in the high/flying jump.
我们正在为运动会做准备：We are practicing for Sport Day.
我能参加跑步:I can join in a run competition/race.
今天他们给我们颁奖:They are going to award us the prize today .