Testplate
光学样板
🗣️ 情景例句
Because I care.
因为我关心。
She was distinguished for her scientific achievements.
她因其科学成就而闻名。
He explained that he had tried to fix the air-line to the supply line that ran round the port but could not because the fittings did not match.
他解释说他想供气管安装到铺设在码头周围的供应管上，但因为接头不相配而接不上。