Paramylum
[机] 副淀粉
🗣️ 情景例句
No. The sssss...
不 ，是sssss……
As soon as he comes, we'll let him know.
他一来，我们就告诉他。
riding on its air cushion over a single rail, which it never touches,at speeds up to 300 m.p.h.----the possibilities appear unlimited.
靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。气垫船的前途是不可限量的。