常見(jiàn)例句雙語(yǔ)例句The top riser vent with big mesh size has excellent ventilation. It also effectively guard against flies.上方大網(wǎng)目透氣網(wǎng)孔，通透氣佳，即可有傚預(yù)防蒼蠅入侵。 返回 riser vent