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- Tourism is a major source of income for the area. 旅游業(yè)是這個(gè)地區的主要收入來(lái)源。
- Milk is the major source of calcium for babies. 牛奶是嬰兒獲取鈣質(zhì)的主要來(lái)源。
- Books are her major source of enjoyment. 書(shū)籍是她快樂(lè )的主要源泉。
- Tourism is the major source of this town's revenue. 旅游業(yè)是這個(gè)小鎮主要的收入來(lái)源。
- Small rodents are a major source of zoonoses. 小型鼠類(lèi)動(dòng)物是人蓄共患病的源頭。
- Mr. Williams is the major source of donations. 威廉姆斯先生是捐款的主要出資人。
- An overcrowded workplace can be a major source of stress. 擁擠的工作空間可能是壓力的主要來(lái)源。
- The UN says dirty air is a major source of metal in crops. 聯(lián)合國稱(chēng)污染的空氣是農作物中金屬成分的主要來(lái)源。
- Commercial banks have been a major source of loans to agriculture. 商業(yè)銀行曾是對農業(yè)的主要貸款來(lái)源。
- Confucianism is one of the major sources of the Chinese culture. 孔子思想是我國文化的主要源頭之一。
- Extramarital infection was the major source of STD transmission. 非婚性接觸是性病傳播的一個(gè)最主要感染源。
- It is also a major source of land and water degradation. 它還是土地和水資源退化的一大根源。
- We count on tourism being the major source of income. 我們把旅游業(yè)當作主要收入來(lái)源。
- Tourism is a major source of income for the people of Thailand. 觀(guān)光是泰國人很重要的收入來(lái)源。
- Fish was a major source of protein for the workingmen. 對這些工人來(lái)說(shuō)，魚(yú)是蛋白質(zhì)的主要來(lái)源。
- That has been a major source of heartburn for educators. 這一法令成為廣大教育者的心頭痛。
- Magazines no longer look to their subscribers as the major source of revenue. 雜志不再依靠其訂戶(hù)為主要收入來(lái)源。
- Newspapers no longer look to their subscribers as the major source of revenue. 報紙不再依靠訂戶(hù)為其主要收入來(lái)源。
- The designer chooses the layout of reinforcement. 設計者選擇鋼筋布置。
- The farm is a major source of jobs for the small community of El Petacal. 該農場(chǎng)是培塔可地區當地居民的主要工作機會(huì )來(lái)源。
