Parasite density
[医] 寄生物密度
🧩 词语组成解析
🗣️ 情景例句
It's almost lunchtime, and no fish yet.
差不多到午餐时间了， 还没钓到鱼。
If you swear you will catch no fish.
咒骂无益，于事无济。
The dogs have greater freedom, too, for they are allowed to wander outside their enclosure.
狗也比较自由，被放出围栏，四处遛达。