A:向左平移 2π3 个单位长度
B:向左平移 π3 个单位长度
C:向右平移 2π3 个单位长度
D:向右平移 π3 个单位长度
— Miller, how long will the meeting last?
— About half an hour. We will discuss two problems today.
Come here, children! Look at the elephant.
Wow! It has eyes and ears.