蒙蒙亮

今天清晨天刚蒙蒙亮他就早早起床赶往实验室准备实验，比往常整整提前了两个小时。

jīn tiān qīng chén tiān gāng mēng mēng liàng tā jiù zǎo zǎo qǐ chuáng gǎn wǎng shí yàn shì zhǔn bèi shí yàn, bǐ wǎng cháng zhěng zhěng tí qián le liǎng gè xiǎo shí.

This morning, as soon as it dawned, he got up early and rushed to the laboratory to prepare experiments, two hours earlier than usual.

今天一大早天刚蒙蒙亮，勤劳的环卫工人们就已经身着反光马甲开始清扫街道上的落叶积雪。

jīn tiān yī dà zǎo tiān gāng mēng mēng liàng, qín láo de huán wèi gōng rén men jiù yǐ jīng shēn zhe fǎn guāng mǎ jiǎ kāi shǐ qīng sǎo jiē dào shàng de luò yè jī xuě.

It was just dawn this morning, and hard-working sanitation workers were already wearing reflective vests and began to clear the fallen leaves and snow on the streets.