Bioaccumulation
n. (有毒化学物质的) 生物体内积累
🗣️ 情景例句
I really feel bad about it.
我真的感到很内疚。
The old man fumbled with the key in the dark.
老人在黑暗中摸索着寻找钥匙。
And she encouraged me when I made up my mind to go to college.
我下决心上大学时，她则给我予鼓励。