?? 詞語組成解析
river
['riv?]
n. 河，江;溪，巨流;
n. 凸輪, 計算機輔助制造, 中央地址存儲器\\n[計] 計算機輔助制造; 計算機輔助生產(chǎn)
??? 情景例句
I'm afraid I didn't get on very well in the exam.
我這次考試恐怕不太順利。
Never too old (or late) to learn.
學到老，學不了。
Mrs.Richards sent her children to school and went upstairs to her bedroom.
把孩子送去上學，然后來到樓上自己的臥室。