名詞 sustenance:

1. a source of materials to nourish the body
   同義詞：nutriment, nourishment, nutrition, aliment, alimentation, victuals
2. the financial means whereby one lives
   同義詞：support, keep, livelihood, living, bread and butter
3. the act of sustaining life by food or providing a means of subsistence
   同義詞：sustentation, sustainment, maintenance, upkeep

1. Its course are enough to give the great bird with its immense wings sufficient sustenance and progress.
   這過程足以給這種有特大翅膀的大鳥提供足夠的支撐力和前進力了。
2. There's not much sustenance in a glass of orange squash.
   一杯橙汁飲料沒有什么營養(yǎng)。
3. She is weak from lack of sustenance.
   她因缺乏營養(yǎng)而虛弱。