his portion has increased to 45% 增加到45%4 @5 i$ ^$ J2 T7 } ?9 L3 D
his portion has increased by 45% 增加了45%' K# a' D$ M4 C5 \: D" n
"has increased at 45%" 这种搭配很少见,意义要看上文语境是什么。
# J6 M9 h) H9 E3 w: \" N8 }) R2 k "at 45%“通常指:在45%这种条件下。at的几种用法通常被国人忽视,教育失败也。 |