1

湯姆

Tāngmǔ

Tom (name)

2

昨天

zuótiān

yesterday

3

到

dào

to reach; to arrive to leave for; to go to to (a place); until (a time); up to (a point) (verb complement indicating arriving at a place or reaching a point) considerate; thoughtful; thorough

4

波士頓

Bōshìdùn

Boston, capital of Massachusetts

=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 無 wú or 不 bù) completely (not); entirely (not); (not) in the least to understand clearly (variant of 瞭 liǎo)

=5

了

liǎo

(of eyes) bright clear-sighted to understand clearly

=5

了

liào

unofficial variant of 瞭 liào