例句與造句

1. The transporter is based on a pair of extremely rugged isl minitrac crawler units manufactured from brass
   其爬行器是在一對堅(jiān)固耐用的銅質(zhì)標(biāo)準(zhǔn)驅(qū)動履帶爬行器的基礎(chǔ)上精制而成。
2. It's difficult to find crawler unit in a sentence. 用crawler unit造句挺難的