a. having a taste like that of a lemon or of fruit that is not ready to eat; (especially of milk) having an unpleasant taste or smell because it is not fresh
A. steep
B. shallow
C. sour
D. stare
查看答案
n. a feeling of great sadness because sth. very bad has happened
A. spade
B. surgeon
C. sorrow
D. stripe
n. an instrument used for measuring the temperature of the air, a person's body, etc.
A. throne
B. thermometer
C. throng
D. stability
n. a garden tool with a broad metal blade and a long handle, used for digging
A. stripe
B. saint
C. sleeve
D. spade
a regular rise and fall in the level of the sea, caused by the pull of the moon and sun; the direction in which the opinion of a large number of people seems to be moving
A. stiff
B. simplify
C. tide
D. synthetic