Securement
n. 有把握；获得
🗣️ 情景例句
If you wish to enter you'll first need gh show return dicket.
如果你想进入的话，首先出示你的双程票。
What do you mean? not at all!
哪有？
and even so, some starting data has to guessed,
既使是这样，有些开始时的资料也不得不依靠推测，