例句與造句

1. ""'Nautilus cookanum " "'is an epoch . " N . cookanum " has been grouped into a single taxon together with extant species based on their shared shell characters.
2. On the eve of the World War I three companies ( " Russian General Oil Company ", " Royal Dutch Shell " and " Partnership of Nobel Brothers . " ) held 86 % of all share Shell obtained 80 % of the shares of the Caspian-Black Sea Society " Mazut ", which had belonged to De Rothschild Fr鑢es.
3. It's difficult to find sharing shells in a sentence. 用sharing shells造句挺難的