continent

I travel.

私は旅行します

I travel during the summer holiday.

私は夏休みに旅行します

I travel with my friend during the summer holiday.

私は夏休みに友達と旅行します

I travel with my friend by train during the summer holiday.

私は夏休みに友達と列車で旅行します

I travel across the European continent with my friend by train during the summer holiday.

私は夏休みに友達と列車で欧州大陸を旅行します