例句與造句

1. It is estimated that water enters through more than 80, 000 incurrent canals at a speed of 6 cm per minute.
2. They are present in the Leucosolenia ( a asconoid sponge ) at the body wall through which water enters the body or they are present in Scypha ( a syconoid sponge ) as a connection between incurrent canal and radial canal.
3. It's difficult to find incurrent canal in a sentence. 用incurrent canal造句挺難的