Spermidine
亚精胺
🗣️ 情景例句
but they need me at the hospital today,
但今天医院有事，
Peace with sword in hand, 'tis safest making.
居安思危，此乃万全之策。
While we were having breakfast, our little boy, Tommy, found two small coins on the floor.
正当我们吃早饭时，我们的小男孩汤米在地上找到两枚小硬币。