Ofa
光纤放大器（optical fiber amplifier）
🗣️ 情景例句
Oh, there's our table and benches.
哦， 那是我们的桌子和长板凳。
She fears Tom will drop out of school.
她担心汤姆会休学。
Long car journeys are even less pleasant, for it is quite impossible even to read.
乘汽车作长途旅行则更加不舒服，因为连看书都几乎不可能。