=1

你

nǐ

you (informal, as opposed to courteous 您 nín)

=1

你

nǐ

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

2

覺得

juéde

to think that ...; to feel that ... to feel (uncomfortable etc)

3

他們

tāmen

they; them

4

發現

fāxiàn

to notice; to become aware of to discover; to find; to detect a discovery

=5

了

le

(completed action marker) (modal particle indicating change of state, situation now) (modal particle intensifying preceding clause)

=5

了

liǎo

to finish (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget") (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least to understand clearly (variant of 了 liǎo)

=5

了

liǎo

(of eyes) bright clear-sighted to understand clearly

=5

了

liào

unofficial variant of 瞭 liào

=6

嗎

má

(coll.) what?

=6

嗎

mǎ

used in 吗啡 mǎfēi

=6

嗎

ma

(question particle for "yes-no" questions)