Valveless
a. 无阀的\\n[医] 无瓣的
🗣️ 情景例句
I suggest that you tear up the letter and start over again.
我建议你把信撕掉重新再写。
All right. I will send the information on a piecemeal basis as we acquire it.
好。我们收齐之后会立即寄给你。
He's our office assistant.
是我们办公室的勤杂人员。