例句與造句

1. There is a small triangular dark fuscous spot on the middle of the costa and a suffused triangular dark fuscous blotch extending along the apical third of the costa, the costal edge between this and the preceding spot whitish.
2. There is an indistinct slender pale ochreous line from five-sixths of the costa to the dorsum before the tornus, preceded by an undefined fascia of blackish-fuscous suffusion dilated in the disc so as to reach the preceding spot.
3. It's difficult to find preceding spot in a sentence. 用preceding spot造句挺難的