The White House insists that the president is in touch with the pulse of the black community.
白宫坚持说总统了解黑人社区的民意。
《柯林斯英汉双解大词典》
2
Four white LEDs on the interface pulse at different frequencies, and the system can use the frequency of the brainwave evoked to determine at which LED the user is staring.
四个白色led在不同频率上闪烁，系统可以通过脑电波确定是看着哪个频率的led。
3
Love your little pulse feeling is that the spring eye to white teeth, sweet my fantasy, implicitly stand in vivid emotion that side under the banner fluttering in the breeze.