=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

應該

yīnggāi

ought to; should; must

=3

更

gēng

to change or replace to experience one of the five two-hour periods into which the night was formerly divided watch (e.g. of a sentry or guard)

=3

更

gèng

more even more further still still more

4

努力

nǔlì

to make an effort; to try hard; to strive hard-working; conscientious

5

學習

xuéxí

to learn to study