Tetramer
n. [化]四聚物
??? 情景例句
I agree. I appreciate your helping me, Jack.
我同意，謝謝你的幫助杰克。
Don't whistle until you are out of the wood.
沒有脫離險境，不要過早高興。
He sat with his arms across the chest.
他雙臂交叉于胸前的坐在那里。