Developmental line
[医] 发育线
🧩 词语组成解析
developmental
[[diˌveləp'mentl]]
a. 发展的, 进化的, 启发的\\n[医] 发育的
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
Did she say why she had to leave today?
她说了她为什么今天非走不可吗？
I started school at the age of 6.
我六岁开始上学。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。