Ectosymbiont
[生态]外共生体
🗣️ 情景例句
Protein, vitamins.
蛋白质， 维他命。
As the wind blows, you must set your sail.
趁风启帆。
If fifty pence pieces are not exchanged for sweets, they rattle for months inside money boxes.
如果50便士不拿来换糖吃，则可以放在储蓄罐里叮当响上好几月。