🧩 词语组成解析
[医] 桦属
🗣️ 情景例句
to ask Dad to sign as a guarantor.
请爸爸当担保人为我签字。
The offer isn't subject to prior sale.
本报盘以货物未售出为条件。
They don't get enough air.
（那样）鱼得不到充足的空气。