Monovacancy
单空位
🗣️ 情景例句
These knives are guaranteed never to go blunt.
这些刀保证不会变钝。
Without danger we cannot get beyond danger.
没有危险就不能解除危险。
and makes them resolve that in future they will not talk to their parents about the places or people they visit.
决心以后不再向父母讲述去过的地方和见过的人。