Chemogradient
化學梯度
??? 情景例句
My job is not an easy one,
我的工作是不輕松，
I am Chen Jianguo. I am from Shanghai, China.
我叫陳建國，來自中國上海。
It is disturbing to think that a dangerous wild animal is still at large in the quiet countryside.
想到在寧靜的鄉村里有一頭危險的野獸繼續逍遙流竄，真令人擔心。