Open ledger
[经] 未结算的分类帐
🧩 词语组成解析
open
['opən]
adj. 敞开的，开着的;公开的，公共的;坦率的;有议论余地的;
vt.& vi. （打）开;开始;睁开;启动;
n. 户外，野外;空旷;公开;
vi. 使打开;展示，显现;
vt. 张开;开放;开张营业;为（建筑物）揭幕;
ledger
['ledʒə]
n. 分类账;
🗣️ 情景例句
If you fail this test you'll be kicked out of school.
你这次考试要是不过就得离校。
Let your yea be yea and your nay be nay.
是就是，非就非。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。