Ectental line
[医] 外内胚层间线
🧩 词语组成解析
[医] 外[及]内胚层的
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
It's asking a lot.
那需要做许多工作。
They must hunger in frost that will not work in heat.
少壮不努力，老大徒伤悲。
These friendly dogs, which were first brought from Asia, were used as watchdogs even in Roman times.
那些最先从亚洲引进的狗，待人友好，早在罗马时代就给人当看门狗了。