Off-the-shelf item
[计] 现用项目, 实用项目
🧩 词语组成解析
off
[ɔ:f, ɔf]
prep. 从…落下;离开;从…去掉;下班;
adv. 离开;距，离;被取消;下班;
adj. 不新鲜的;不能接受;不礼貌;
n. 起跑;
v. 杀死;
the
[ðə]
art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;
shelf
[ʃɛlf]
n. 架子，搁板;棚;沙洲，暗礁;格，层;
item
['aitem, 'aitəm]
n. 条，条款;项目;一则;一件商品（或物品）;
adv. 又，同上;
🗣️ 情景例句
Oh, thank you.
哦，谢谢。
Talk of an angel and you'll hear his wings.
说到曹操，曹操就到。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。