Give the description of the following sound segments in English.[k];[z];[w];[u:];[i]

The compound word "bookstore" is the place where books are sold. This indicates that the meaning of a compound is the sum total of the meanings of its components.

The pair of words “l(fā)end”and “borrow”are（）.

As modern linguistics aims to describe and analyze the language people actually use, and not to lay down rules for "correct" linguistic behavior,it is said to be （）.

Of the three branches of phonetics, the longest established, and until recently the most highly developed, is（）phonetics.