Stratum adamantinum
[医] 釉层, 釉质
🧩 词语组成解析
🗣️ 情景例句
He cancelled his appointment.
他取消约会了。
I often have lunch at noon.
我常常在中午吃午饭。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。