Thianthrene
噻蒽
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
I wrote to him last Friday.
我上个星期五写信给他。
I'll send you a note about that.
我会寄一张便条给你。