to ignore a problem hoping it will go away
忽略问题，指望它自己解决
"We can’t bury our heads in the sand about climate change any longer."
"我们不能再对气候变化把头埋在沙里了"
to make small adjustments to improve performance
extremely happy and excited
someone appears active but is not thinking clearly
crazy or extremely worried
a heavy burden or responsibility causing stress
Sometimes, two people are just right, but a third person can...
