例句與造句

1. both " unit stratotype " and " boundary stratotype " can be carried out equally, but it is better firstly to set up " boundary stratotype " if a suitable section could be found
   陸相層型可以“單位層型”與“界線層型”建立并舉，有條件的地質(zhì)斷代還是要重視建立“界線層型”。
2. It's difficult to find unit stratotype in a sentence. 用unit stratotype造句挺難的