Hexylacetylene
[化]己基乙炔
🗣️ 情景例句
and good-bye.
再见。
He phoned to cancel the meeting.
他打电话来取消会议。
You see, I put some soil in the box, sow the seed carefully like this, and then cover it with more soil.
你瞧，我在盒子里放些泥土，像这样小心地把种子播下，然后再用多一点儿的土盖住种子。