by heart I know all my friends telephone numbers by heart. I never have to look in the telephone book. 含义是是熟记，背诵 have a sweet tooth I know you have a sweet tooth, so I bought you a box of chocolates. 含义是爱吃甜食
As a noun, travel refers to the activity in general and is generally used as an uncountable noun. travel做名词的时候指的是旅行这种行为本身，通常用作不可数名词。 例句： I enjoy travel and playing golf. 我喜欢旅
Hydrate 补水 To put more water or moisture into sth You need to hydrate your skin, or it will become too dry. 你得给肌肤补水了，不然肌肤会变得太干燥。 Face wash 洗面奶 Skin care product used to cleanse the face I us
