汉译英常见错误 | 掌握滑雪的真正技巧需要几年的时间

[译] 掌握滑雪的真正技巧需要几年的时间。
[误] It takes several years to develop real skill in skiing.

[正] It takes several years to develop real skill at skiing.
[注] “在……方面的技能”，英文用“skill at...”。其中介词用 at 不用 in。