1560s, "heliotrope," from sun (n.) + flower (n.). In reference to the Helianthus (introduced to Europe 1510 from America by the Spaniards) it is attested from 1590s, so called from the appearance of the heads.
权威例句
1. Sunflower margarine has the same fat content as butter.
向日葵所制人造黄油的脂肪含量与黄油脂肪含量相同。
2. He was spitting out the husks of sunflower seeds on the floor.
他把瓜子皮吐在地板上.
3. The sunflower turns towards the sun.
向日葵向着太阳.
4. A bee sits on a sunflower in the garden.
一只蜜蜂栖息在花园中的一棵葵花上.
5. The sunflower blushed to own the nameless flower as her kin.