Phosphonic
a. 膦的, 膦酸的
🗣️ 情景例句
we'll send you a letter of appointment and can sign a full distributor contract.
我们将给你们送上一份聘书，并签订一份总的销售合同。
$10.00.
10美元。
There is a chair below the window.
窗户下面有一把椅子。