Hcn
[醫][=hydrocyanic acid]氫氰酸
??? 情景例句
He patted me on the back for the deal made yesterday.
他對我昨天所做的交易表示滿意。
Just wait and see.
只好等著看嘍！
Everybody will be watching anxiously as the new buildings go up.
大家都將急切地注視著新建筑的建成。