Raod to Chinese Fluency (7)

1.
暗自思忖 - sī cǔn

ponder; consider; 思量;考虑

2.
由头 - yóu tou

pretext; 借口;缘由

3.
光阴荏苒 - rěn rǎn

elapse quickly or imperceptibly; 时间在不知不觉中渐渐过去

4.
荏弱 - rěn ruò

weak; 柔弱

5.
甄选, 甄别 - zhēn xuǎn

select; discriminate;