check-in 

彰化縣溪州鄉大莊國小

The students say English sentences for their check-in.

學生們說英語句子進行認證。

They get a stamp at the end of the check-in.

通過認證，他們會得一個戳印（蓋章）。

彰化縣彰化市平和國小

The Pinghe Elemantary School hockey team is checking in at the airport.

平和國小的曲棍球隊正在機場辦理登機手續。

After they check in, they will fly to the United States to compete.

在他們辦完登機手續後，就要飛到美國去比賽了。