Phytocollite
氮腐殖质
🗣️ 情景例句
You are my best friend in the whole world.
你是我在这个世界上最好的朋友。
My country is rich in natural resources.
我国自然资源丰富。
Heavy iron chains around his feet and hands were fixed to a metal bar that ran round the hall about ten centimetres off the ground.
手上和脚上沉重的铁链拴在厅堂四周离地约有10厘米的金属杆上。