Like a closed book?
With a closed book, you cannot see what it’s about and therefore remain mystified.
Back into your shell?
For us humans, our metaphorical shell is where we feel safe, our comfort zone, so to speak.
Spitting image
When people say "spitting image", they mean to say that two people look exactly alike.
老外在中国:“微笑之地”巴厘岛
目前巴厘岛旅游业中潜藏着威胁,应当以泰国旅游业为前车之鉴。
A ‘Hail Mary’?
“Hail Mary” is a prayer among Christians, uttered when they want to ask for holy intervention.
Damp squib?
Damp squibs become synonymous with anything that fails to work properly, anything that is not up to expectation.
No slam dunk?
A "slam dunk" is synonymous with an easy win, victory or success.
On the fence?
To sit on the fence is to remain neutral or to stay undecided or to be unable to take a side at all.
Stiff upper lip?
When you want to look solemn, stoic, determined and resolute and so on you maintain a stiff upper lip.
Out of the left field?
If you say someone's ideas are left field, you mean to say their ideas are unconventional, odd and surprising.
Punching the air
To punch the air, one simulates such a punch without touching anyone but the body motion is the same.
Stick out like sore thumb?
If some person sticks out like a sore thumb, the person is odd and different, commanding particular attention because he/she is excessive in some way or other.
Happy-go-lucky?
One who is happy-go-lucky is easy going and carefree, not giving a care about the future.
Fast and loose with facts?
If you play "fast and loose" with facts, it means you are not reliable with facts.
Get a grip on reality
When people ask you to get a grip on reality, they are talking about assessing a complex social or political issue.