At the height of the d. o. t-c. o. m bubble, we solicited online donations at $5 a piece.

在网络泡沫达到至高点时，我们曾在网上以一次5美元为单位要求获得捐款。

youdao

The traditional spelling is d-o-u-g-h-n-u-t but people often just spell it d-o-n-u-t.

VOA: special.2010.04.12

This is a new company record. If it wasn't a waste of a fine enlisted man, I'd recommend you for O.C.S.,Private Gump.

VOA: standard.other

Irish names (O'Fallon, Ill.) and French ones (Coeur d'Alene, Idaho) aren't possessives and get by.

WSJ: In U.S., Apostrophes in Place Names Are Practically Against the Law

About 30 to 50 pecent of American children and adults don't get enough vitamin D, says coauthor James O'Keefe, M.

CNN: Vitamin D may be essential for heart health