keep an eye on 留意,照看

let alone 更别提,不打扰

let go (of) 放,松手

lose heart 失去勇气,丧失信心

lose one's head 慌乱,仓皇失措

lose one's temper 发脾气,发努

lose sight of 忘记,忽略;看不见

make a /the difference 有影响,起作用

supplement to sth 补充,增刊

keep in mind 记住

keep one's head 保持镇静

keep one's word 守信用

keep pace(with) (与……)齐步前进

trust in 对……的信赖,信任

wish for 欲望,愿望 常用其它短语

a series of 一系列,一连串

above all 首先,尤其是

after all 毕竟,究竟

ahead of 在……之前

ahead of time 提前

all at once 突然,同时

all but 几乎;除了……都

lead the way 引路,带路

learn by heart 记住,背诵

leave alone 不打扰,不干预

sympathy for 对……的同情

sympathy with 对……的赞同

all over again 再一次,重新

all the time 一直,始终

all the same 仍然,照样的

every other 每隔一个的

taste for 对……的爱好,喜爱

taste in 对……的审美能力

tendency to sth 趋向,趋势

all of a sudden 突然

all over 遍及

make friends 交朋友

in half 成两半

in hand 在进行中,待办理

make fun of 取笑,嘲弄

make one's way 去,前往

make sense 讲得通,言之有理

in favour of 支持,赞成

in front of 面对,在……前