The kinds of trade nations engage in are varied and complex , often a mixture of visible and invisible trade 国家从事的贸易种类是多样的、复杂的，往往是有形贸易和无形贸易的混合。
The visible trade is the import and export of goods , and the invisible trade is the exchange of services between countries 有形贸易指货物的进出口贸易，而无形贸易涉及的是国家间的劳务交换。
The invisible trade account should remain in surplus and continue to offset a large part of the visible trade deficit in 1998 一九九八年，无形贸易账应会保持盈馀，可继续抵销大部分有形贸易赤字。
However , with exports growing faster than imports during the latter part of the year , the visible trade deficit then narrowed somewhat 然而，由于下半年出口增长超过进口，所以有形贸易赤字其后略为收窄。
This compared with the corresponding ratios of 143 per cent in 1970 , 148 per cent in 1980 , and 221 per cent in 1990 一九七零年时有形贸易总值相等于本地生产总值的143 % ，一九八零年为148 % ，一九九零年则为221 % 。
As growth in imports outpaced that in exports , the merchandise trade deficit widened to $ 88 . 7 billion in 2000 , from $ 46 . 5 billion in 1999 ( 由于进口增长超过出口，所以有形贸易赤字由1999年的465亿元，扩阔至2000年的887亿元（
Reduced demand in the local economy thus resulted in a substantial improvement in the visible trade balance , although an increase in the terms of trade also mattered 由于本地需求减缩，加上贸易价格比率上升，以致有形贸易差额显著改善。
