Hemal cavity
[医] 体腔
🧩 词语组成解析
a. 血液的, 血管的\\n[医] 血的, 血管的, 脉管的, 腹侧的
🗣️ 情景例句
Do you get the message?
明白我的意思没有？
What we can't get seems better than what we have.
人们得不到的好像比所拥有的要好。[九六全国高考]
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。