1·His mouth tightened into a thin line.
他的嘴抿成了一道细缝。
—— 《牛津词典》
2·Her lips compressed into a thin line.
她的双唇抿成了一道缝。
—— 《牛津词典》
3·Her stare was malevolent, her mouth a thin line.
她目光狠毒，嘴唇紧闭。
—— 《柯林斯英汉双解大词典》
4·It is a thin line between winning and losing.
胜败只是一线之间的事情。
5·A thin line just on the top eyelid will do the trick.
上眼睑的一条细线就可以获得成功了。
6·No, There is not a thin line between love and hate.
不，爱恨之间并不是一线之隔。
7·His mouth was compressed into a thin line of concentration.
他的嘴抿成了一条线，显得很专注。
8·Although it may be a thin line, these two places are worlds apart.
这可能只是一条很细的线，但两边的世界截然不同。
9·There is a thin line between being a hero and being a memory.
成为英雄和成为回忆仅仅是一念之差。
10·There's a thin line between companionship and support and dependency.
互相扶持仍是过分依靠，只在一念之间。