1. do one's best 尽最大的努力
例句:This official, though, says he's doing his best.
而这位官员说他正尽他所能努力。

2. look to 指望、期待

例句:And until today, we are still looking to it.
直至今日，我们仍期望着这。

3. on board 在飞机、船、火车上

例句:This is a tree made up of all 239 cabin crew and passengers on board MH370.

这是棵由 MH370 航班上所有 239 名机组人员和乘客所组成的树。

4. be struggling to do sth 努力做···

例句:Three-year-old Rafael also misses his grandfather, but Malaysia's government is struggling to comfort families.
三岁的 Rafael 同样也想念他的爷爷，但马来西亚政府正努力安抚家属。