Back-up sand
[机] 背砂
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
up
[ʌp]
adv. 在上面，在高处;起床，起来;向上;由低到高;
adj. 向上的;上升的;竖立的，垂直的;举起的;
vt.& vi. 增加;加速;提高;举起，拿起;
prep. 在…的上端;向高处;沿…而去;向…上游;
n. 上升，升高;兴旺，繁荣;上坡;（价格等）上涨;
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
Please don't take offense.I only wanted to tell you what I think.
请别生气我仅仅想要告诉你我的想法。
and there is a very firm rule that the bank has no right or authority to pay out a customer's money on a cheque on which its customer's signature has been forged.
银行没有任何权利或理由把储户的钱让伪造储户签名的支票取走。