The sun was already up when they set off.
他們出發(fā)時(shí)太陽已經(jīng)升起了。
I could feel the warm sun on my back.
我背上感受到了陽光的溫暖。
The earth takes a year to make a circuit of the sun.
地球繞太陽運(yùn)行一周需要一年的時(shí)間。
The trees form a natural protection from the sun's rays.
樹木起天然的保護(hù)作用，遮擋了陽光的照射。
Our son's having problems with his reading and writing.
我們兒子在讀寫方面有困難。
Well, son, how can I help you?
那么，孩子，我能為你做點(diǎn)什么？