1

我们

wǒmen

we; us; ourselves; our

=2

有

yǒu

to have; there is (bound form) having; with; -ful; -ed; -al (as in 有意 yǒuyì intentional)

=2

有

yòu

(obsolete on its own in Standard Chinese) alternative form of 又 (yòu, “again”) (obsolete on its own in Standard Chinese) alternative form of 又 (yòu, “and; with a remainder of (when dividing an integer by ten)”) alternative form of 又 (yòu, “again”) alternative form of 又 (yòu, “and; with a remainder of (when dividing an integer by ten)”)

3

一节

yījié

(obsolete) the period between New Year's Day and Dragon Boat Festival, between Dragon Boat Festival and Mid-Autumn Festival, or between Mid-Autumn Festival and the end of the year Used other than figuratively or idiomatically: see 一, 節 /节: one segment, part or paragraph the period between New Year's Day and Dragon Boat Festival, between Dragon Boat Festival and Mid-Autumn Festival, or between Mid-Autumn Festival and the end of the year

4

关于

guānyú

pertaining to concerning with regard to about a matter of

5

环境污染

huánjìngwūrǎn

environmental pollution

=6

的

de

of; ~'s (possessive particle) (used after an attribute when it modifies a noun) (used at the end of a declarative sentence for emphasis) (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one") also pr. dì or di in poetry and songs

=6

的

dī

a taxi; a cab (abbr. for 的士 dīshì)

=6

的

dí

really and truly

=6

的

dì

(bound form) bull's-eye; target

7

讲座

jiǎngzuò

course of lectures; lecture series chair (academic position)