重點講解：
1. come from
來自；始于；
eg. Chocolate comes from the cacao tree.
巧克力出自可可樹qu)vvUgWUM7。
eg. The term 'claret', used to describe Bordeaux wines, may come from the French word 'clairet'.
用來指稱波爾多葡萄酒的詞 claret 可能源于法語單詞 clairethjew5vU-2[ALz@*[#。
2. originate from
來源；起源；
eg. All carbohydrates originate from plants.
所有的碳水化合物均來自植物,0V(E7IV#jn)[。
eg. The rhythms of jazz music originate from African tribal music.
爵士樂的節奏起源于非洲的部落音樂05]dAL8BCI4]r[@。
3. as far as I know
（用于表示不太確信）據我所知；就我記得的；
eg. It only lasted a couple of years, as far as I know.
據我所知，它僅僅維持了兩三年h!j_PY.ez@x。
eg. So far as I know, she has a faculty of housekeeping.
就我所知，她很善于理家Snh!s9-#U3kcKo5]e。